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- catalog contributor b7105850.
- catalog contributor b7105851.
- catalog date "1971".
- catalog description "Vols. for 1971- prepared for the Committee on Education and Labor, House of Representatives.".
- catalog issued "1971".
- catalog language "eng".
- catalog publisher "Washington, U.S. Govt. Print. Off.".
- catalog subject "Coal miners Diseases.".
- catalog subject "Lungs Dust diseases.".
- catalog subject "W2 A S6B".
- catalog title "Black lung benefits program; annual report of part B of title IV of the Federal coal mine and safety act.".
- catalog type "text".