Cita APA (7a ed.)

Heacox, K. (2015). The national parks: An illustrated history. National Geographic.

Cita Chicago Style (17a ed.)

Heacox, Kim. The National Parks: An Illustrated History. Washington, D.C.: National Geographic, 2015.

Cita MLA (8a ed.)

Heacox, Kim. The National Parks: An Illustrated History. National Geographic, 2015.

Precaución: Estas citas no son 100% exactas.