1. Shellmounds of San Francisco Bay Region;Nelson;University of California Publications in American Archaeology and Ethnology,1909
2. The Ellis Landing Shellmound;Nelson;University of California Publications in American Archaeology and Ethnology,1910
3. Composition of California Shellmounds;Gifford;University of California Publications in American Archaeology and Ethnology,1916
4. Heizer R. F. , and A. E. Treganza 1944. “Mines and Quarries of the Indians of California.” California Journal of Mines and Geology, Report XL of the State Mineralogist. Sacramento.
5. Lillard J. B. ; Heizer R. F. ; and Fenenga F. 1939. “An Introduction to the Archaeology of Central California.” Bulletin, Department of Anthropology, Sacramento Junior College, No. 2. Sacramento.