APA (7e ed.) Bronvermelding

United States. Bureau of Mines. (1984). Nonfuel mineral model directory. U.S. Dept. of the Interior, Bureau of Mines.

Chicago (17e ed.) Bronvermelding

United States. Bureau of Mines. Nonfuel Mineral Model Directory. [Avondale, Md.]: U.S. Dept. of the Interior, Bureau of Mines, 1984.

MLA (9e ed.) Bronvermelding

United States. Bureau of Mines. Nonfuel Mineral Model Directory. U.S. Dept. of the Interior, Bureau of Mines, 1984.