United States. Congress. Senate. Committee on the District of Columbia. Subcommittee on Public Health, Education, Welfare, and Safety, & ProQuest (Firm). (1969). Industrial Safety: Hearings before the United States Senate Committee on the District of Columbia, Subcommittee on Public Health, Education, Welfare, and Safety, Ninety-First Congress, first session, on Dec. 10, 1969. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. Senate. Committee on the District of Columbia. Subcommittee on Public Health, Education, Welfare, and Safety, and ProQuest (Firm). Industrial Safety: Hearings Before the United States Senate Committee on the District of Columbia, Subcommittee on Public Health, Education, Welfare, and Safety, Ninety-First Congress, First Session, on Dec. 10, 1969. Washington: U.S. G.P.O., 1969.
MLA (9th ed.) CitationUnited States. Congress. Senate. Committee on the District of Columbia. Subcommittee on Public Health, Education, Welfare, and Safety, and ProQuest (Firm). Industrial Safety: Hearings Before the United States Senate Committee on the District of Columbia, Subcommittee on Public Health, Education, Welfare, and Safety, Ninety-First Congress, First Session, on Dec. 10, 1969. U.S. G.P.O., 1969.