Cita APA

Darwin, C. R. 1. (1962). The voyage of the Beagle. New York: Doubleday y company.

Citación estilo Chicago

Darwin, Charles Robert 1809-1882. The Voyage of the Beagle. New York: Doubleday y company, 1962.

Cita MLA

Darwin, Charles Robert 1809-1882. The Voyage of the Beagle. New York: Doubleday y company, 1962.