United States. Congress. Senate. Committee on Labor and Public Welfare. Subcommittee on Labor & ProQuest (Firm). (1969). Federal Construction Safety: Hearings before the United States Senate Committee on Labor and Public Welfare, Subcommittee on Labor, Ninety-First Congress, first session, on Mar. 25, May 7, 1969. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on Labor and Public Welfare. Subcommittee on Labor and ProQuest (Firm). Federal Construction Safety: Hearings Before the United States Senate Committee on Labor and Public Welfare, Subcommittee on Labor, Ninety-First Congress, First Session, on Mar. 25, May 7, 1969. Washington: U.S. G.P.O., 1969.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on Labor and Public Welfare. Subcommittee on Labor and ProQuest (Firm). Federal Construction Safety: Hearings Before the United States Senate Committee on Labor and Public Welfare, Subcommittee on Labor, Ninety-First Congress, First Session, on Mar. 25, May 7, 1969. U.S. G.P.O., 1969.