APA (7th ed.) Citation

(2012). The national map, geographic names (Revised May 2012.). U.S. Department of the Interior, U.S. Geological Survey.

Chicago Style (17th ed.) Citation

The National Map, Geographic Names. Revised May 2012. [Reston, Va.]: U.S. Department of the Interior, U.S. Geological Survey, 2012.

MLA (9th ed.) Citation

The National Map, Geographic Names. Revised May 2012. U.S. Department of the Interior, U.S. Geological Survey, 2012.