APA (7th ed.) Citation

National Geographic Society (U.S.). Cartographic Division, Chamberlin, W., & Grazzini, A. D. (1968). Southeast Asia.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). Cartographic Division, Wellman Chamberlin, and Athos D. Grazzini. Southeast Asia. Washington, 1968.

MLA (9th ed.) Citation

National Geographic Society (U.S.). Cartographic Division, et al. Southeast Asia. 1968.