Cita APA (7a ed.)

Wetmore, A. (1959). Birds of the Pleistocene in North America. Smithsonian Institution.

Cita Chicago Style (17a ed.)

Wetmore, Alexander. Birds of the Pleistocene in North America. Washington, D.C: Smithsonian Institution, 1959.

Cita MLA (9a ed.)

Wetmore, Alexander. Birds of the Pleistocene in North America. Smithsonian Institution, 1959.