@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}
}
