1. Early Pleistocene (?) pollen spectra from near Lake Tahoe, California;Adam;Journal of Research of U.S. Geological Survey,1973
2. Tulelake, California: the last 3 million years;Adam;Palaeogeography, Palaeoclimatology, Palaeoecology,1989
3. Pliocene environmental changes at Tulelake, Siskiyou County, California, from 3 to 2 Ma;Adam,1990
4. Environmental changes in the Tule Lake Basin, Siskiyou and Modoc Counties, California, from 3 to 2 million years before present;Adam;U.S. Geological Survey Bulletin 1933,1990
5. The Salt Lake Group in Cache Valley, Utah and Idaho;Adamson,1955