APA (7th ed.) Citation

Grinnell, J. (1921). Two new rodents (Genera Thomomys and Marmota) from the Eartern border of California. Univ. of California Press.

Chicago Style (17th ed.) Citation

Grinnell, Joseph. Two New Rodents (Genera Thomomys and Marmota) from the Eartern Border of California. Berkeley: Univ. of California Press, 1921.

MLA (9th ed.) Citation

Grinnell, Joseph. Two New Rodents (Genera Thomomys and Marmota) from the Eartern Border of California. Univ. of California Press, 1921.