APA

Leatherwood S., Reeves R. R., Perrin W. F. & Evans W. E. (1988). Whales, Dolphins, and Porpoises of the Eastern North Pacific and Adjacent Arctic Waters. New York, USA: Dover Publications.

Chicago

Leatherwood Stephen, Reeves Randall R, Perrin William F and Evans Willian E. 1988. Whales, Dolphins, and Porpoises of the Eastern North Pacific and Adjacent Arctic Waters. New York, USA: Dover Publications.

Harvard

Leatherwood S., Reeves R. R., Perrin W. F. and Evans W. E. (1988). Whales, Dolphins, and Porpoises of the Eastern North Pacific and Adjacent Arctic Waters. New York, USA: Dover Publications.

MLA

Leatherwood Stephen, Reeves Randall R, Perrin William F and Evans Willian E. Whales, Dolphins, and Porpoises of the Eastern North Pacific and Adjacent Arctic Waters. New York, USA: Dover Publications. 1988.