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U.S. Senate; U.S. Congress
view article (1.0)Federal Mine Safety and Health Amendments Act of 1977. Hearings Before the Subcommittee on Labor of the Committee on Human Resources, United States Senate, 95th Congress. 1st Session. S. 717. March 30, 31, and April 1, 1977.Senate, Washington, DC; Congress, Washington, DCS. 717S. 717
1977
459 p.