Cita APA

(1999). National Geographic Atlas of the World (7th ed.). National geographic society.

Citación estilo Chicago

National Geographic Atlas of the World. 7th ed. Washington D. C.: National geographic society, 1999.

Cita MLA

National Geographic Atlas of the World. 7th ed. National geographic society, 1999.

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