"A Review of Mine Safety & Health: The State of the Industry Today" : Hearing Before the Subcommittee on Workforce Protections of the Committee on Education and the Workforce, House of Representatives, One Hundred Sixth Congress, Second Session, Hearing Held in Washington, DC, September 14, 2000, Volume 4
United States. Congress. House. Committee on Education and the Workforce. Subcommittee on Workforce Protections
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