<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>6</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Robinson, William J.</style></author><author><style face="normal" font="default" size="100%">Ronald H. Towner</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">A Directory of Tree-Ring Dated Native American Sites in the American Southwest</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">apache</style></keyword><keyword><style  face="normal" font="default" size="100%">Archaeology</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">directory</style></keyword><keyword><style  face="normal" font="default" size="100%">Geography</style></keyword><keyword><style  face="normal" font="default" size="100%">native american</style></keyword><keyword><style  face="normal" font="default" size="100%">navajo</style></keyword><keyword><style  face="normal" font="default" size="100%">Pueblo</style></keyword><keyword><style  face="normal" font="default" size="100%">quandrangle</style></keyword><keyword><style  face="normal" font="default" size="100%">site</style></keyword><keyword><style  face="normal" font="default" size="100%">southwest</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword><keyword><style  face="normal" font="default" size="100%">ute</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1993</style></year><pub-dates><date><style  face="normal" font="default" size="100%">09/1993</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">Laboratory of Tree-Ring Research</style></publisher><pub-location><style face="normal" font="default" size="100%">Tucson</style></pub-location><language><style face="normal" font="default" size="100%">English</style></language></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>19</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Moore, Peter</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tree Ring Chronology</style></title><secondary-title><style face="normal" font="default" size="100%">Nature</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">chronology</style></keyword><keyword><style  face="normal" font="default" size="100%">dates</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1978</style></year></dates><volume><style face="normal" font="default" size="100%">272</style></volume></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>6</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Bannister, Bryant</style></author><author><style face="normal" font="default" size="100%">Hannah, John W.</style></author><author><style face="normal" font="default" size="100%">Robinson, William J.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tree-Ring Dates from New Mexico M-N,S,Z Southwestern New Mexico Area</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">date</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">new mexico</style></keyword><keyword><style  face="normal" font="default" size="100%">southwest</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1970</style></year></dates><publisher><style face="normal" font="default" size="100%">University of Arizona</style></publisher><pub-location><style face="normal" font="default" size="100%">Tucson</style></pub-location></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>32</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Breternitz, David Alan</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">The Archaeological Interpretation of Tree-Ring Specimins for Dating Southwestern Ceramic Styles</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">anthropology</style></keyword><keyword><style  face="normal" font="default" size="100%">Archaeology</style></keyword><keyword><style  face="normal" font="default" size="100%">ceramic</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">indiginous</style></keyword><keyword><style  face="normal" font="default" size="100%">lasting phenomenon of traded ceramics</style></keyword><keyword><style  face="normal" font="default" size="100%">pottery</style></keyword><keyword><style  face="normal" font="default" size="100%">site</style></keyword><keyword><style  face="normal" font="default" size="100%">southwest</style></keyword><keyword><style  face="normal" font="default" size="100%">spanish entrada</style></keyword><keyword><style  face="normal" font="default" size="100%">specimen</style></keyword><keyword><style  face="normal" font="default" size="100%">style</style></keyword><keyword><style  face="normal" font="default" size="100%">trade</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1963</style></year><pub-dates><date><style  face="normal" font="default" size="100%">1963</style></date></pub-dates></dates><publisher><style face="normal" font="default" size="100%">University of Arizona</style></publisher><pub-location><style face="normal" font="default" size="100%">Tucson</style></pub-location><volume><style face="normal" font="default" size="100%">Doctor of Philosophy</style></volume><language><style face="normal" font="default" size="100%">English</style></language><abstract><style face="normal" font="default" size="100%">&lt;p style=&quot;margin-left:.5in;&quot;&gt;The interpretation of approximately 5715 dated tree-ring specimens from about 342 archaeological sites in the American Southwest is the basis for &amp;ldquo;dating&amp;rdquo; the pottery types found in association. The time involved spans the period from the introduction of fired ceramics to the Spanish Entrada, approximately A.D. 1550.&lt;/p&gt;&lt;p style=&quot;margin-left:.5in;&quot;&gt;The provenience and site situation information for both the dated tree-ring specimens and the associated pottery is tabulated for each site and site-area which has tree-ring dates, except when these data are accessible in the literature.&lt;/p&gt;&lt;p style=&quot;margin-left:.5in;&quot;&gt;Criteria for establishing the validity of the association and provenience of the tree-ring specimens and the pottery are formulated. The interpretation and evaluation of the validity of these dates and associations is the basis for &amp;ldquo;dating&amp;rdquo; the various pottery types. The occurrence of pottery in &amp;ldquo;Indigenous&amp;rdquo; and &amp;ldquo;Trade&amp;rdquo; situation is presented separately; the pottery types in these categories are dated separately, in so far as possible, and then evaluated in terms of total distribution and context. Approximately 325 pottery types, varieties, and ceramic categories are dated on the basis of archaeological associations with tree-ring specimens. The data presented do not change the gross time placements of previous workers, but they do (1) refine some pottery dates, (2) reject others, and (3) give differing validity to additional ceramic dates.&lt;/p&gt;&lt;p style=&quot;margin-left:.5in;&quot;&gt;The concept of &amp;ldquo;pottery type&amp;rdquo; is used as the analytical unit for dating Southwestern ceramics. The concept of &amp;ldquo;Ceramic Style&amp;rdquo; represents synthesis at a higher level of abstraction and does not lend itself to dating based on tree-ring material.&lt;/p&gt;&lt;p style=&quot;margin-left:.5in;&quot;&gt;A progressive increase in the amount and range of traded pottery is noted through time. The increase in the distribution of various pottery types after about A.D. 1250 is also accompanied by an increase in attempts to make local copies of certain pottery types obtained by trade.&lt;/p&gt;&lt;p style=&quot;margin-left:.5in;&quot;&gt;Decorated pottery types which occur as trade products tend to persist in later archaeological contexts and this situation is discussed as the &amp;ldquo;Lasting Phenomenon of Traded Ceramics.&amp;rdquo;&lt;/p&gt;&lt;p style=&quot;margin-left:.5in;&quot;&gt;Southwestern pottery is distributed in prehistoric times on the basis of hand-to-hand or person-to-person contact and although the amount of trade and the spatial dispersal increase in time, particularly after 1250, this trade never reaches the same degree of institutionalization that is seen in Mesoamerica.&amp;nbsp; An associated feature is an emphasis on the trading of small, decorated vessels, as opposed to large, utility or undecorated, ceramic containers.&lt;/p&gt;</style></abstract></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Bannister, Bryant</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Dendrochronology</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">bannister</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword><keyword><style  face="normal" font="default" size="100%">tree rings</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1963</style></year></dates></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Precision of Ring Dating in Tree-Ring Chronologies</style></title><secondary-title><style face="normal" font="default" size="100%">Tree Ring Bulletin </style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Archaeology</style></keyword><keyword><style  face="normal" font="default" size="100%">chronology</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">precision dating</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1946</style></year></dates><publisher><style face="normal" font="default" size="100%">University of Arizona</style></publisher><pub-location><style face="normal" font="default" size="100%">Tucson</style></pub-location><volume><style face="normal" font="default" size="100%">XVII</style></volume><issue><style face="normal" font="default" size="100%">No. 3</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Researches in Dendrochronology</style></title><secondary-title><style face="normal" font="default" size="100%">Bulletin of the University of Utah</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword><keyword><style  face="normal" font="default" size="100%">university of utah</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1946</style></year></dates><publisher><style face="normal" font="default" size="100%">University of Utah</style></publisher><pub-location><style face="normal" font="default" size="100%">Salt Lake City</style></pub-location><volume><style face="normal" font="default" size="100%">37</style></volume><issue><style face="normal" font="default" size="100%">No. 2</style></issue><notes><style face="normal" font="default" size="100%">This title is available through the Tree Ring Laboratory; please contact the lab for more information. </style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>13</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Peterson, Roy M.</style></author><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tree Rings and Climatic Cycles, Laboratory of Tree-Ring Research, Astronomical Studies</style></title><secondary-title><style face="normal" font="default" size="100%">Phi Kappa Phi Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">astronomy</style></keyword><keyword><style  face="normal" font="default" size="100%">climate</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">environment</style></keyword><keyword><style  face="normal" font="default" size="100%">fraternity</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring laboratory</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1944</style></year></dates><publisher><style face="normal" font="default" size="100%">University of Arizona</style></publisher><pub-location><style face="normal" font="default" size="100%">Tucson</style></pub-location><volume><style face="normal" font="default" size="100%">XXIV</style></volume><issue><style face="normal" font="default" size="100%">No. 3</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Crossdating at Mesa Verde National Park</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Forestry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Archaeology</style></keyword><keyword><style  face="normal" font="default" size="100%">crossdating</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">Forestry</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">mesa verde</style></keyword><keyword><style  face="normal" font="default" size="100%">southwest</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1942</style></year></dates><volume><style face="normal" font="default" size="100%">40</style></volume><issue><style face="normal" font="default" size="100%">No. 4</style></issue><notes><style face="normal" font="default" size="100%">Copies of this are available through the Tree Ring Laboratory; please contact the lab for more information. </style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Crossdating in Dendrochronology</style></title><secondary-title><style face="normal" font="default" size="100%">Journal of Forestry</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">crossdating</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1941</style></year></dates><volume><style face="normal" font="default" size="100%">39</style></volume><notes><style face="normal" font="default" size="100%">Copies of this are available through the Tree Ring Laboratory; please contact the lab for more information.</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors></contributors><titles><title><style face="normal" font="default" size="100%">Tree Rings Nature's Calendar for the Archaeologist</style></title><secondary-title><style face="normal" font="default" size="100%">Field Museum News</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Archaeology</style></keyword><keyword><style  face="normal" font="default" size="100%">chronology</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">dendrochronology</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">southwest</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1940</style></year></dates></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tree Rings and Chronology</style></title><secondary-title><style face="normal" font="default" size="100%">University of Arizona Bulletin</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">chronology</style></keyword><keyword><style  face="normal" font="default" size="100%">dates</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1937</style></year></dates><publisher><style face="normal" font="default" size="100%">University of Arizona</style></publisher><pub-location><style face="normal" font="default" size="100%">Tucson</style></pub-location><volume><style face="normal" font="default" size="100%">VII</style></volume><issue><style face="normal" font="default" size="100%">No. 4</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>13</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Dating Pueblo Bonito and Other Ruins of the Southwest</style></title><secondary-title><style face="normal" font="default" size="100%">National Geographic Society</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Archaeology</style></keyword><keyword><style  face="normal" font="default" size="100%">dates</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">pueblo bonito</style></keyword><keyword><style  face="normal" font="default" size="100%">ruins</style></keyword><keyword><style  face="normal" font="default" size="100%">southwest</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1935</style></year></dates><publisher><style face="normal" font="default" size="100%">National Geographic Society</style></publisher><notes><style face="normal" font="default" size="100%">&lt;p&gt;Copies of this article are available in the Tree Ring Laboratory. Please contact the curator for more information. pcreasman@ltrr.arizona.edu&lt;/p&gt;</style></notes></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>19</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Secret of the Southwest Solved by Talkative Tree Rings </style></title><secondary-title><style face="normal" font="default" size="100%">National Geographic Magazine</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Archaeology</style></keyword><keyword><style  face="normal" font="default" size="100%">dates</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">Hopi</style></keyword><keyword><style  face="normal" font="default" size="100%">national geographic</style></keyword><keyword><style  face="normal" font="default" size="100%">southwest</style></keyword><keyword><style  face="normal" font="default" size="100%">tree rings</style></keyword><keyword><style  face="normal" font="default" size="100%">zuni</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1929</style></year></dates></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Some Topographic and Climatic Characters in the Annual Ring of the Yellow Pines and Sequoias of the Southwest </style></title><secondary-title><style face="normal" font="default" size="100%">Proceedings of the American Philosophical Society</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">annual</style></keyword><keyword><style  face="normal" font="default" size="100%">characteristics</style></keyword><keyword><style  face="normal" font="default" size="100%">characters</style></keyword><keyword><style  face="normal" font="default" size="100%">climate</style></keyword><keyword><style  face="normal" font="default" size="100%">climatic</style></keyword><keyword><style  face="normal" font="default" size="100%">dates</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">environment</style></keyword><keyword><style  face="normal" font="default" size="100%">ring</style></keyword><keyword><style  face="normal" font="default" size="100%">sequoias</style></keyword><keyword><style  face="normal" font="default" size="100%">southwest</style></keyword><keyword><style  face="normal" font="default" size="100%">topographic</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword><keyword><style  face="normal" font="default" size="100%">tree rings</style></keyword><keyword><style  face="normal" font="default" size="100%">yellow pine</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1922</style></year></dates><volume><style face="normal" font="default" size="100%">LXI</style></volume><issue><style face="normal" font="default" size="100%">No. 2</style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>19</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Dating Our Prehistoric Ruins</style></title><secondary-title><style face="normal" font="default" size="100%">Natural History</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Archaeology</style></keyword><keyword><style  face="normal" font="default" size="100%">dates</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">Prehistoric</style></keyword><keyword><style  face="normal" font="default" size="100%">ruins</style></keyword><keyword><style  face="normal" font="default" size="100%">southwest</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">1921</style></year></dates><volume><style face="normal" font="default" size="100%">XXI</style></volume><issue><style face="normal" font="default" size="100%">No.1 </style></issue></record><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>13</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Douglass, A.E.</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Tree Ring Dates and Dating of Southwestern Prehistoric Ruins</style></title></titles><keywords><keyword><style  face="normal" font="default" size="100%">addresses</style></keyword><keyword><style  face="normal" font="default" size="100%">Archaeology</style></keyword><keyword><style  face="normal" font="default" size="100%">date</style></keyword><keyword><style  face="normal" font="default" size="100%">dates</style></keyword><keyword><style  face="normal" font="default" size="100%">dating</style></keyword><keyword><style  face="normal" font="default" size="100%">Douglass</style></keyword><keyword><style  face="normal" font="default" size="100%">historic</style></keyword><keyword><style  face="normal" font="default" size="100%">prehistoric ruins</style></keyword><keyword><style  face="normal" font="default" size="100%">sites</style></keyword><keyword><style  face="normal" font="default" size="100%">tree ring</style></keyword></keywords></record></records></xml>