APA (7th ed.) Citation

Clark, B. L. (1925). Pelecypoda from the marine Oligocene of western North America. Univ. of California Press.

Chicago Style (17th ed.) Citation

Clark, Bruce L. Pelecypoda from the Marine Oligocene of Western North America. Berkeley, Calif: Univ. of California Press, 1925.

MLA (9th ed.) Citation

Clark, Bruce L. Pelecypoda from the Marine Oligocene of Western North America. Univ. of California Press, 1925.