Corporate Author United States. Congress. House. Committee on Education and Labor. Subcommittee on Health and Safety.

標題 MSHA oversight hearings on coal mine explosions during December 1981 and January 1982 : hearings before the Subcommittee on Health and Safety of the Committee on Education and Labor, House of Representatives, Ninety-seventh Congress, second session, hearings held in Washington, D.C., on February 23; March 2, 9, 16, 23; and May 4, 1982.

出版資料 Washington : U.S. G.P.O, 1982 [i.e. 1983]