Lyons, Patrick. 2001. ?Winslow Orange Ware And The Ancestral Hopi Migration Horizon?. Anthropology. Anthropology. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=729042861&sid=14&Fmt=2&clientId=43922&RQT=309&VName=PQD.

Graybill, DA. 1985. ?Western U.s. Tree-Ring Index Chronology Data For Detection Of Arboreal Response To Increasing Carbon Dioxide?. Tucson: Laboratory of Tree-Ring Research.

Milsom, Stephen John. 1979. ?Within-And Between Tree Variation In Ceratin Properties Of Annual Rings Of Sessile Oak, Quercus (Mattuschka) Liebl. As A Source Of Dendrochronological Information?. Liverpool Polytechnic.

Gabriel III, Herman W. 1976. ?Wilderness Ecology: The Danaher Creek Drainage, Bob Marshall Wilderness, Montana?. University of Montana. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=760480581&sid=1&Fmt=1&clientId=43922&RQT=309&VName=PQD.

Douglass, AE. 1912. ?Where-When Did Masonry Originate?. Arizona Daily Star. Arizona Daily Star.

Douglass, AE. 1908. ?Weather Cycles In The Growth Of Big Trees?. Monthly Weather Review. Monthly Weather Review.

Douglass, AE. 1900. ?Weather Prediction In Northern Arizona?. The Coconino Sun. The Coconino Sun.