State of the mining industry in the northwest : hearing before the Subcommittee on Natural Resources Development and Production of the Committee on Energy and Natural Resources, United States Senate, ninety-ninth Congress, second session on ..., Coeur d'Alene, ID, August 20, 1986.
United States.Congress.Senate.Committee on Energy and Natural Resources.Subcommittee on Natural Resources Development and Production.
Washington : U.S.G.P.O.,
1987.
Mines and mineral resources
Mineral industries