APA (7th ed.) Citation

(1992). National Geographic atlas of the world (Revised 6. ed.). National Geographic Soc.

Chicago Style (17th ed.) Citation

National Geographic Atlas of the World. Revised 6. ed. Washington, DC: National Geographic Soc, 1992.

MLA (9th ed.) Citation

National Geographic Atlas of the World. Revised 6. ed. National Geographic Soc, 1992.