Park, Wonkyu. 1990. ?Development Of Anatomical Tree-Ring Chonologies From Southern Arizona Conifers Using Image Analysis?. School Of Renewable Natural Resources. School Of Renewable Natural Resources. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=744327611&sid=2&Fmt=2&clientId=43922&RQT=309&VName=PQD.