APA (7th ed.) Zitazioa

Kenyon, K. W. (1969). The sea otter in the eastern Pacific Ocean. Bureau of Sport Fisheries and Wildlife.

Chicago Style (17th ed.) Zitazioa

Kenyon, Karl W. The Sea Otter in the Eastern Pacific Ocean. Washington, D.C: Bureau of Sport Fisheries and Wildlife, 1969.

MLA (9th ed.) Zitazioa

Kenyon, Karl W. The Sea Otter in the Eastern Pacific Ocean. Bureau of Sport Fisheries and Wildlife, 1969.