Tsuchiya, Akio. 1990. ?Influence Of Water Balance On The Caatinga Stand In The Semi-Arid Interior, Northeast Brazil?. University of Tsukuba.

Biondi, Franco. 1987. ?Influence Of Gambel Oak On Radial Growth Of Southwestn Ponderosa Pine: A Dendrochronological Study?. School Of Renewable Natural Resources. School Of Renewable Natural Resources. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=754449011&sid=5&Fmt=2&clientId=43922&RQT=309&VName=PQD.

O?Rourke, Mary Kay. 1986. ?The Implications Of Atmospheric Pollen Rain For Fossil Pollen Profiles In The Arid Southwest?. Geoscience. Geoscience. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=748690901&sid=6&Fmt=2&clientId=43922&RQT=309&VName=PQD.

Ahlstrom, Richard Van Ness. 1985. ?The Interpretation Of Archaeological Tree-Ring Dates?. Anthropology. Anthropology. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=752229261&sid=1&Fmt=2&clientId=43922&RQT=309&VName=PQD.

Leavitt, S. 1982. ?Inference Of Past Atmospheric Delta Carbon-13 And Atmospheric Carbon-Dioxide From Carbon-13/carbon-12 Measurements In Tree Rings?. Geosciences. Geosciences. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=752855841&sid=22&Fmt=2&clientId=43922&RQT=309&VName=PQD.

Dodge, Richard Archie. 1963. ?Investigtions Into The Ecological Relationships Of Ponderosa Pine In Southeast Arizona?. Botany. Botany. University of Arizona. http://ezproxy.library.arizona.edu/login?url=http://proquest.umi.com/pqdweb?did=763081241&sid=6&Fmt=1&clientId=43922&RQT=309&VName=PQD.