APA aipamena

Ridgway, S. H., & Harrison, R. J. (1981). Handbook of marine mammals. Academic Press.

Chicago Style aipamena

Ridgway, Sam H., and Richard J. Harrison. Handbook of Marine Mammals. London, New York: Academic Press, 1981.

MLA aipamena

Ridgway, Sam H., and Richard J. Harrison. Handbook of Marine Mammals. Academic Press, 1981.