Cita APA

Slud, P. (1964). The birds of Costa Rica: Distribution and ecology. New York: American Museum of Natural History.

Citación estilo Chicago

Slud, Paul. The Birds of Costa Rica: Distribution and Ecology. New York: American Museum of Natural History, 1964.

Cita MLA

Slud, Paul. The Birds of Costa Rica: Distribution and Ecology. New York: American Museum of Natural History, 1964.

Precaución: Estas citas no son 100% exactas.