Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.