APA (7th ed.) Citation

Hopkirk, J. D. (1973). Endemism in fishes of the Clear Lake region of central California. University of California Press.

Chicago Style (17th ed.) Citation

Hopkirk, John D. Endemism in Fishes of the Clear Lake Region of Central California. Berkeley: University of California Press, 1973.

MLA (9th ed.) Citation

Hopkirk, John D. Endemism in Fishes of the Clear Lake Region of Central California. University of California Press, 1973.