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Federal timber sales policies : report submitted to the Senate Committee on Interior and Insular Affairs by its Subcommittee on the Legislative Oversight Function, pursuant to Public Law no. 601, 79th Congress (Legislative Reorganization Act of 1946, 31 U.S.C. 60)
(1956)
Intermediate report
Surface mining reclamation : Hearings, Ninetieth Congress, second session ... April 30, May 1 and 2, 1968
(1968)