APA (7th ed.) Citation

National Geographic Society (U.S.). Cartographic Division. (1977). Wild and scenic rivers of the United States. The Society.

Chicago Style (17th ed.) Citation

National Geographic Society (U.S.). Cartographic Division. Wild and Scenic Rivers of the United States. Washington, D.C.: The Society, 1977.

MLA (9th ed.) Citation

National Geographic Society (U.S.). Cartographic Division. Wild and Scenic Rivers of the United States. The Society, 1977.

Warning: These citations may not always be 100% accurate.