APA (7th ed.) Citation

Snyder, J. P. (1982). Map projections used by the U.S. Geological Survey. U.S. Dept. of the Interior, Geological Survey.

Chicago Style (17th ed.) Citation

Snyder, John Parr. Map Projections Used by the U.S. Geological Survey. [Reston, Va.]: U.S. Dept. of the Interior, Geological Survey, 1982.

MLA (9th ed.) Citation

Snyder, John Parr. Map Projections Used by the U.S. Geological Survey. U.S. Dept. of the Interior, Geological Survey, 1982.