Biblio
“Dendrochronology Of Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1984. 
“Dendrochronology Of Bristlecone Pine”. Tucson: Laboratory of Tree-Ring Research.
. 1985. 
“The Use And Limitation Of Dendrochronology In Studying The Effects Of Air Pollution On Forests”. Proceedings Of Nato Advanced Research Workshop: Effects Of Acidic Deposition On Forests, Wetlands And Agricultural Ecosystems. Proceedings Of Nato Advanced Research Workshop: Effects Of Acidic Deposition On Forests, Wetlands And Agricultural Ecosystems.
. 1985. . 1996.
“Climate Of Rebellion: The Relationship Between Climate Variability And Indigenous Uprisings In Mid-Eighteenth-Century Sonora”. Anthropology. Anthropology. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=795926481&sid=4&Fmt=2&clientId=43922&RQT=309&VName=PQD.
. 2004. “Fire History And Fire Climate Relationships In Upper Elevation Forests Of The Southwestern United States”. School Of Natural Resources. School Of Natural Resources. Tucson: University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=1375523671&sid=1&Fmt=2&clientId=43922&RQT=309&VName=PQD.
. 2007.