APA (7e ed.) Bronvermelding

Snyder, J. P. (1982). Map projections used by the U.S. geological survey (2nd ed.). U.S. Government Printing Office.

Chicago (17e ed.) Bronvermelding

Snyder, John Parr. Map Projections Used by the U.S. Geological Survey. 2nd ed. Washington: U.S. Government Printing Office, 1982.

MLA (9e ed.) Bronvermelding

Snyder, John Parr. Map Projections Used by the U.S. Geological Survey. 2nd ed. U.S. Government Printing Office, 1982.