National Geographic. (2007). Atlas of the world (8a. ed.). National Geographic Society.
Citación estilo ChicagoNational Geographic. Atlas of the World. 8a. ed. Washington, D.C: National Geographic Society, 2007.
Cita MLANational Geographic. Atlas of the World. 8a. ed. National Geographic Society, 2007.
Warning: These citations may not always be 100% accurate.