Mineral facts and problems.
Edition: 1980 edition.
Series: United States. Bureau of Mines. Bulletin -- 671.; Bulletin (United States. Bureau of Mines) -- 671.
Publisher: U.S. Dept. of the Interior
Published: 1981
Place of publication: Washington, D.C
Language: eng
Number of pages: 1060
Subjects: Mines and mineral resources -- United States.; Mineral industries -- United States.