Cita APA

Gerrard, M. (2007). National Geographic traveler (2nd ed.). National Geographic Society.

Citación estilo Chicago

Gerrard, Mike. National Geographic Traveler. 2nd ed. Washington, D.C: National Geographic Society, 2007.

Cita MLA

Gerrard, Mike. National Geographic Traveler. 2nd ed. National Geographic Society, 2007.

Warning: These citations may not always be 100% accurate.