Health and safety in the coal mines. Hearing. Ninety-first Congress, second session ..

Similar Items

• Coal mine health and safety. Hearing, Ninety-first Congress, first session ... Sept. 9, 1969
  Published: (1969)
• MSHA oversight--coal mine safety and health : hearings before the Subcommittee on Health and Safety of the Committee on Education and Labor, House of Representatives, Ninety-eight Congress, first session
  Published: (1983)
• MSHA oversight--coal mine safety and health : hearings before the Subcommittee on Health and Safety of the Committee on Education and Labor, House of Representatives, Ninety-eighth Congress, first session.
  Published: (1983)
• Coal mine health and safety : Hearings before the General Subcommittee on Labor of the Committee on Education and Labor, House of Representatives, Ninety-first Congress, first session on H.R. 4047, H.R. 4295, and H.R. 7976 bills to improve the health and safety conditions of persons working the coal mine industry of the United States.
  Published: (1969)
• Health and safety in the coal mines : hearing before the Subcommittee on Labor of the Committee on Labor and Public Welfare, United States Senate, Ninety-first Congress, second session on health and safety in the coal mines, Centerville, Pa., June 26, 1970, Washington, D.C., August 6, 7, and 14, 1970, Charleston, W. Va., August 17, 1970.
  Published: (1971)