APA (7th ed.) Citation

National Geographic Society (U.S.). Cartographic Division. (1981). National Geographic atlas of the world (Fifth edition.). National Geographic Society.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). Cartographic Division. National Geographic Atlas of the World. Fifth edition. Washington, D.C.: National Geographic Society, 1981.

MLA (9th ed.) Citation

National Geographic Society (U.S.). Cartographic Division. National Geographic Atlas of the World. Fifth edition. National Geographic Society, 1981.