APA (7th ed.) Citation

Berta, A., & Sumich, J. L. (1999). Marine mammals: Evolutionary biology. Academic Press.

Chicago Style (17th ed.) Citation

Berta, Annalisa, and James L. Sumich. Marine Mammals: Evolutionary Biology. San Diego [u.a.]: Academic Press, 1999.

MLA (9th ed.) Citation

Berta, Annalisa, and James L. Sumich. Marine Mammals: Evolutionary Biology. Academic Press, 1999.