APA (7th ed.) Citation

Walker, E. P. (1983). Walker's mammals of the world. Johns Hopkins University Press.

Chicago Style (17th ed.) Citation

Walker, Ernest Pillsbury. Walker's Mammals of the World. Baltimore: Johns Hopkins University Press, 1983.

MLA (8th ed.) Citation

Walker, Ernest Pillsbury. Walker's Mammals of the World. Johns Hopkins University Press, 1983.