@mastersthesis {491, title = {The Dendrochronology of Three Tree Species in the Central Mississippi Valley}, volume = {PhD}, year = {1969}, school = {Southern Illinois University}, url = {http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=755447421\&sid=11\&Fmt=1\&clientId=43922\&RQT=309\&VName=PQD}, author = {Estes, Eugene Todd} }