Biblio
] . 1992. “Statistical Relationships Between Tree Growth And Climate In Western North America”. Geoscience. Geoscience. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=746968761&sid=9&Fmt=2&clientId=43922&RQT=309&VName=PQD.
. 1986. “Long-Term Climatic Changes In Western Europe And East Asia”. Geology And Geography. Geology And Geography. University of Massachusetts.