Ahlstrom, Richard Van Ness. 1985. ?The Interpretation Of Archaeological Tree-Ring Dates?. Anthropology. Anthropology. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=752229261&sid=1&Fmt=2&clientId=43922&RQT=309&VName=PQD.