APA (7th ed.) Citation

Dorit, R. L., Barnes, R. D., & Walker, W. F. (1991). Zoology. Saunders College Publishing.

Chicago Style (17th ed.) Citation

Dorit, Robert L., Robert D. Barnes, and Warren F. Walker. Zoology. Philadelphia: Saunders College Publishing, 1991.

MLA (8th ed.) Citation

Dorit, Robert L., et al. Zoology. Saunders College Publishing, 1991.