Coal pipeline act of 1977 : hearings before the Subcommittee on Mines and Mining and the Subcommittee on Indian Affairs and Public Lands of the Committee on Interior and Insular Affairs, House of Representatives, Ninety fifth Congress, first session, on H.R. 1609, to amend the Mineral leasing act of 1920 ... held in Washington, D.C. April 19, 25, and 26, 1977.

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