Black lung benefits act of 1972 [electronic resource] / Title IV of the Federal coal mine health and safety act of 1969 showing changes made by Public law 92-303, approved May 19, 1972. Subcommittee on Labor of the Committee on Labor and Public Welfare, United States Senate.
- Washington : U.S. Govt. Print. Off., 1972.
- Government document
1 online resource (vii, 28 pages) : digital, PDF file
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