Closure of underground copper mines : hearing before the Subcommittee on Minerals, Materials, and Fuels of the Committee on Interior and Insular Affairs, United States Senate, Ninety-third Congress, second session to review the Anaconda Company's plans to close its underground copper mines in Butte, Montana, November 25, 1974.
|Format:||Government Document eBook|
U.S. Government Printing Office,
|Series:||U.S. Congressional documents. Congressional hearings.