APA (7th ed.) Citation

Patent, D. H. (1989). Looking at dolphins and porpoises. Holiday House.

Chicago Style (17th ed.) Citation

Patent, Dorothy Hinshaw. Looking at Dolphins and Porpoises. New York: Holiday House, 1989.

MLA (9th ed.) Citation

Patent, Dorothy Hinshaw. Looking at Dolphins and Porpoises. Holiday House, 1989.