APA (7th ed.) Citation

Keen, A. M. (1963). Marine molluscan genera of western North America: An illustrated key. Stanford University Press.

Chicago Style (17th ed.) Citation

Keen, A. Myra. Marine Molluscan Genera of Western North America: An Illustrated Key. Stanford, Calif.: Stanford University Press, 1963.

MLA (9th ed.) Citation

Keen, A. Myra. Marine Molluscan Genera of Western North America: An Illustrated Key. Stanford University Press, 1963.