APA (7th ed.) Citation

United States. National Ocean Service. (1960). Geographical center of the United States. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Survey.

Chicago Style (17th ed.) Citation

United States. National Ocean Service. Geographical Center of the United States. Rockville, Md.: U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Survey, 1960.

MLA (9th ed.) Citation

United States. National Ocean Service. Geographical Center of the United States. U.S. Dept. of Commerce, National Oceanic and Atmospheric Administration, National Ocean Survey, 1960.