Cita APA (7th ed.)

Hickman, C. P., Robert, L. S., & Hickman, F. M. (1990). Biology of animals (5th ed.). Times Mirror/Mosby College.

Cita Chicago (17th ed.)

Hickman, Cleveland P., Larry S. Robert, i Frances Miller Hickman. Biology of Animals. 5th ed. Louis, Mo: Times Mirror/Mosby College, 1990.

Cita MLA (9th ed.)

Hickman, Cleveland P., et al. Biology of Animals. 5th ed. Times Mirror/Mosby College, 1990.