Cita APA (7a ed.)

Villee, C. A., Walker, W. F., & Barnes, R. D. (1984). General zoology. Saunders College Pub.

Cita Chicago Style (17a ed.)

Villee, Claude Alvin, Warren Franklin Walker, y Robert D. Barnes. General Zoology. Philadelphia: Saunders College Pub, 1984.

Cita MLA (9a ed.)

Villee, Claude Alvin, et al. General Zoology. Saunders College Pub, 1984.