Cita APA (7a ed.)

National Geographic Society. (1981). National Geographic atlas of the world (5th ed.). National Geographic Society.

Cita Chicago Style (17a ed.)

National Geographic Society. National Geographic Atlas of the World. 5th ed. Washington: National Geographic Society, 1981.

Cita MLA (9a ed.)

National Geographic Society. National Geographic Atlas of the World. 5th ed. National Geographic Society, 1981.