APA (7th ed.) Citation

Berta, A., Sumich, J. L., & Kovacs, K. M. Marine mammals: Evolutionary biology. Elsevier Inc.

Chicago Style (17th ed.) Citation

Berta, Analisa, James L. Sumich, and Kit M. Kovacs. Marine Mammals: Evolutionary Biology. MA, USA: Elsevier Inc.

MLA (9th ed.) Citation

Berta, Analisa, et al. Marine Mammals: Evolutionary Biology. Elsevier Inc.