Biblio
“Evidence Of Climatic Effects In The Annual Rings”. Ecology 1 (No. 1). Ecology.
. 1920. 
“Allometric Analysis Of Plant Growth In Woodland Communities”. Range Science. Range Science. Utah State University. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=749271331&sid=1&Fmt=2&clientId=43922&RQT=309&VName=PQD.
. 1980. “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.
. 2000. “Stand Replacing Fire History And Aspen Ecology In The Upper Rio Grande Basin”. Department Of Renewable Natural Resources. Department Of Renewable Natural Resources. Tucson: University of Arizona.
. 2003. 