Proposed coal product valuation rules : hearing before the Subcommittee on Mineral Resources Development and Production of the Committee on Energy and Natural Resources, United States Senate, one hundredth Congress, first session on ... November 16, 1987.
United States.Congress.Senate.Committee on Energy and Natural Resources.Subcommittee on Mineral Resources Development and Production.
Washington : U.S.G.P.O.,
1988.
Coal leases
Coal mines and mining