Emry, R. J., Thorington, J., & Clemens, W. A. (1982). Descriptive and comparative osteology of the oldest fossil squirrel, protosciurus (Rodentia: Sciuridae). City of Washington: Smithsonian Institution Press.
Chicago Style CitationEmry, Robert J., JR Thorington, and William A. Clemens. Descriptive and Comparative Osteology of the Oldest Fossil Squirrel, Protosciurus (Rodentia: Sciuridae). City of Washington: Smithsonian Institution Press, 1982.
MLA CitationEmry, Robert J., JR Thorington, and William A. Clemens. Descriptive and Comparative Osteology of the Oldest Fossil Squirrel, Protosciurus (Rodentia: Sciuridae). City of Washington: Smithsonian Institution Press, 1982.
Warning: These citations may not always be 100% accurate.