APA (7e ed.) Bronvermelding

U.S. Bureau of Mines & U.S. Geological Survey. (1948). Mineral resources of the United States. Public Affairs Press.

Chicago (17e ed.) Bronvermelding

U.S. Bureau of Mines en U.S. Geological Survey. Mineral Resources of the United States. Washington: Public Affairs Press, 1948.

MLA (9e ed.) Bronvermelding

U.S. Bureau of Mines en U.S. Geological Survey. Mineral Resources of the United States. Public Affairs Press, 1948.