Salzer, Matthew W. 2000. ?Dendroclimatology In The San Francisco Peaks Region Of Northern Arizona, Usa?. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=731919721&sid=18&Fmt=2&clientId=43922&RQT=309&VName=PQD.