Hessl, Amy. 2000. ?Aspen: Ecological Processes And Management Eras In Northwestern Wyoming, 1807--1998?. Geology And Geography. Geology And Geography. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=731957311&sid=11&Fmt=2&clientId=43922&RQT=309&VName=PQD.

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.

Garfin, Gregg Marc. 1998. ?Sierra Nevada Tree Rings And Atmospheric Circulation?. Geoscience. Geoscience. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=733009441&sid=28&Fmt=2&clientId=43922&RQT=309&VName=PQD.

Woodhouse, Connie Ann. 1996. ?Climate Variability In The Southwestern United States As Reconstructed From Tree-Ring Chronologies?. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=739718221&sid=24&Fmt=2&clientId=43922&RQT=309&VName=PQD.

Biondi, Franco. 1994. ?Spatial And Temporal Reconstruction Of Twentieth-Century Growth Trends In A Naturally-Seeded Pine Forest?. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=740900561&sid=29&Fmt=2&clientId=43922&RQT=309&VName=PQD.