Cita APA (7a ed.)

Gentry, R. L. (1998). Behavior and ecology of the northern fur seal. Princeton University Press.

Cita Chicago Style (17a ed.)

Gentry, Roger L. Behavior and Ecology of the Northern Fur Seal. Princeton, New Jersey: Princeton University Press, 1998.

Cita MLA (8a ed.)

Gentry, Roger L. Behavior and Ecology of the Northern Fur Seal. Princeton University Press, 1998.