Não informado. (1976). Minerals & Materials. U.S. Department of the Interior, Bureau of Mines.
Chicago Style (17th ed.) CitationNão informado. Minerals & Materials. Washington: U.S. Department of the Interior, Bureau of Mines, 1976.
MLA (8th ed.) CitationNão informado. Minerals & Materials. U.S. Department of the Interior, Bureau of Mines, 1976.
Warning: These citations may not always be 100% accurate.