APA (7th ed.) Citation

Boitani, L., Bartoli, S., & Anderson, S. (1983). Simon and Schuster's Guide to mammals. Simon and Schuster.

Chicago Style (17th ed.) Citation

Boitani, Luigi, Stefania Bartoli, and Sydney Anderson. Simon and Schuster's Guide to Mammals. New York: Simon and Schuster, 1983.

MLA (9th ed.) Citation

Boitani, Luigi, et al. Simon and Schuster's Guide to Mammals. Simon and Schuster, 1983.