APA (7e ed.) Bronvermelding

ebrary, Inc, & Estes, J. A. (2006). Whales, whaling, and ocean ecosystems. University of California Press.

Chicago (17e ed.) Bronvermelding

ebrary, Inc, en J. A. Estes. Whales, Whaling, and Ocean Ecosystems. Berkeley, Calif. ; London: University of California Press, 2006.

MLA (9e ed.) Bronvermelding

ebrary, Inc, en J. A. Estes. Whales, Whaling, and Ocean Ecosystems. University of California Press, 2006.