Nash, Stephan Edward. 1997. ?A History Of Archaeological Tree-Ring Datin: 1914-1945?. Anthropology. Anthropology. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=739840221&sid=5&Fmt=2&clientId=43922&RQT=309&VName=PQD.