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The Federal mine safety and health act of 1977 hearings before the Subcommittee on Compensation, Health and Safety of the Committee on Education and Labor, House of Representatives, Ninety-fifth Congress, first session on H.R. 4287 ... hearings held in Washington, D.C
- "The Federal mine safety and health act of 1977 hearings before the Subcommittee on Compensation, Health and Safety of the Committee on Education and Labor, House of Representatives, Ninety-fifth Congress, first session on H.R. 4287 ... hearings held in Washington, D.C"@en
- "The Federal mine safety and health act of 1977 : hearings before the Subcommittee on Compensation, Health and Safety of the Committee on Education and Labor, House of Representatives, Ninety-fifth Congress, first session on H.R. 4287 ... hearings held in Washington, D.C"
- "The Federal mine safety and health act of 1977 : hearings before the Subcommittee on Compensation, Health and Safety of the Committee on Education and Labor, House of Representatives, Ninety-fifth Congress, first session on H.R. 4287 ... hearings held in Washington, D.C"@en