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 state of the mining industry in the Northwest, Coeur d'Alene, ID, August 20, 1986
U.S. G.P.O. : For sale by the Supt. of Docs., Congressional Sales Office, U.S. G.P.O.,
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