APA

Leatherwood S., Reeves R. R., Perrin W. F. & Evans W. E. (1982). Whales, dolphins, and porpoises of the eastern North Pacific and adjacent Arctic waters. [S.d.]: U.S. Department of Commerce.

Chicago

Leatherwood Stephen, Reeves Randall R, Perrin William F and Evans William E. 1982. Whales, dolphins, and porpoises of the eastern North Pacific and adjacent Arctic waters. [S.d.]: U.S. Department of Commerce.

Harvard

Leatherwood S., Reeves R. R., Perrin W. F. and Evans W. E. (1982). Whales, dolphins, and porpoises of the eastern North Pacific and adjacent Arctic waters. [S.d.]: U.S. Department of Commerce.

MLA

Leatherwood Stephen, Reeves Randall R, Perrin William F and Evans William E. Whales, dolphins, and porpoises of the eastern North Pacific and adjacent Arctic waters. [S.d.]: U.S. Department of Commerce. 1982.