APA
United States, United States, . (1968). Construction safety: hearings before the Select Subcommittee on Labor of the Committee on Education and Labor, House of Representatives, Ninetieth Congress, first and second sessions, on H.R. 2567 a bill to promote health and safety in the building trades and construction industry in all Federal and federally finance or federally assisted construction projects. Hearings held in Washington, D.C., August 29, 30, 1967, and February 6, 7, 1968. Washington, DC: United States Government Printing Office.
Chicago
United States, United States, . 1968. Construction safety: hearings before the Select Subcommittee on Labor of the Committee on Education and Labor, House of Representatives, Ninetieth Congress, first and second sessions, on H.R. 2567 a bill to promote health and safety in the building trades and construction industry in all Federal and federally finance or federally assisted construction projects. Hearings held in Washington, D.C., August 29, 30, 1967, and February 6, 7, 1968. Washington, DC: United States Government Printing Office.
Harvard
United States, United States, . (1968). Construction safety: hearings before the Select Subcommittee on Labor of the Committee on Education and Labor, House of Representatives, Ninetieth Congress, first and second sessions, on H.R. 2567 a bill to promote health and safety in the building trades and construction industry in all Federal and federally finance or federally assisted construction projects. Hearings held in Washington, D.C., August 29, 30, 1967, and February 6, 7, 1968. Washington, DC: United States Government Printing Office.
MLA
United States, United States, . Construction safety: hearings before the Select Subcommittee on Labor of the Committee on Education and Labor, House of Representatives, Ninetieth Congress, first and second sessions, on H.R. 2567 a bill to promote health and safety in the building trades and construction industry in all Federal and federally finance or federally assisted construction projects. Hearings held in Washington, D.C., August 29, 30, 1967, and February 6, 7, 1968. Washington, DC: United States Government Printing Office. 1968.