Author,Title,Edition,Publisher,Year,Series,Number,ISBN,ISSN,URL
"Petersen, Kenneth Lee","Climate and the Dolores River Anasazi : a paleoenvironmental reconstruction from a 10,000-year pollen record, La Plata Mountains, southwestern Colorado",,University of Utah Press,1988,Anthropological papers,,0874803039,,https://cir.nii.ac.jp/crid/1130282271202526080