Cita APA

Firshers, J. (1964). The world of birds. New York: Doubleday & Company.

Citación estilo Chicago

Firshers, James. The World of Birds. New York: Doubleday & Company, 1964.

Cita MLA

Firshers, James. The World of Birds. New York: Doubleday & Company, 1964.