APA (7th ed.) Citation

National Geographic Society (U.S.). Cartographic Division & Chamberlin, W. (1965). Viet Nam, Cambodia, Laos, and Eastern Thailand. National Geographic Society.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). Cartographic Division and Wellman Chamberlin. Viet Nam, Cambodia, Laos, and Eastern Thailand. Washington: National Geographic Society, 1965.

MLA (9th ed.) Citation

National Geographic Society (U.S.). Cartographic Division and Wellman Chamberlin. Viet Nam, Cambodia, Laos, and Eastern Thailand. National Geographic Society, 1965.