APA (7th ed.) Citation

National Geographic Society. Cartographic Division, Darley, R. J., Shupe, J. F., & American Congress on Surveying and Mapping. (1979). The Americas. The Society.

Chicago Style (17th ed.) Citation

National Geographic Society. Cartographic Division, Richard J. Darley, John F. Shupe, and American Congress on Surveying and Mapping. The Americas. Washington, D.C.: The Society, 1979.

MLA (8th ed.) Citation

National Geographic Society. Cartographic Division, et al. The Americas. The Society, 1979.