APA (7th ed.) Citation

Whitaker, J. O. (1996). National Audubon Society field guide to North American mammals (Rev. ed., 2nd ed., fully rev.). Knopf.

Chicago Style (17th ed.) Citation

Whitaker, John O. National Audubon Society Field Guide to North American Mammals. Rev. ed., 2nd ed., fully rev. New York: Knopf, 1996.

MLA (8th ed.) Citation

Whitaker, John O. National Audubon Society Field Guide to North American Mammals. Rev. ed., 2nd ed., fully rev. Knopf, 1996.