McKenna, Peter,, and Thomas  Windes. 2001. ?Going Against The Grain-Wood Production In Chacoan Society?. American Antiquity. American Antiquity.

Herr, Sarah. 1994. ?Great Kivas As Integrative Architecture In The Silver Creek Community, Arizona?. Anthropology. Anthropology. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=748072191&sid=58&Fmt=2&clientId=43922&RQT=309&VName=PQD.

Mutch, Linda Susan. 1994. ?Growth Responses Of Giant Sequoia To Fire And Climate In Sequoia And Kings Canyon National Parks, California?. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=743039441&sid=4&Fmt=2&clientId=43922&RQT=309&VName=PQD.

Cathey, Everett Henry. 1976. ?Geophysics Education In North America?. Education Foundations And Administration. Education Foundations And Administration. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=760459481&sid=8&Fmt=1&clientId=43922&RQT=309&VName=PQD.

Burns, James M. 1976. A Guide To Measuring Tree Ring Widths. Tucson: Laboratory of Tree Ring Research.

Fritts, H. 1966. ?Growth Rings Of Trees: Their Correlation With Climate?. Science. Science.

Douglass, AE. 1894. ?Gegenschein Observations?.