Cita APA (7a ed.)

Nowak, R. M. (1991). Walker's mammals of the world (5th ed.). The Johns Hopkins University Press.

Cita Chicago Style (17a ed.)

Nowak, Ronald M. Walker's Mammals of the World. 5th ed. Baltimore: The Johns Hopkins University Press, 1991.

Cita MLA (8a ed.)

Nowak, Ronald M. Walker's Mammals of the World. 5th ed. The Johns Hopkins University Press, 1991.