APA (7th ed.) Citation

National Geographic Society, Anderson, C., & Dale, B. (1973). American mountain people. [National Geographic Society].

Chicago Style (17th ed.) Citation

National Geographic Society, Clay Anderson, and Bruce Dale. American Mountain People. Washington: [National Geographic Society], 1973.

MLA (9th ed.) Citation

National Geographic Society, et al. American Mountain People. [National Geographic Society], 1973.