Cita APA (7a ed.)

(1986). Columbus and the New World. National Geographic Society.

Cita Chicago Style (17a ed.)

Columbus and the New World. Washington, D.C.: National Geographic Society, 1986.

Cita MLA (9a ed.)

Columbus and the New World. National Geographic Society, 1986.

Precaución: Estas citas no son 100% exactas.