United States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Public Health and Welfare & ProQuest (Firm). (1969). Air Pollution Control Research into Fuels and Motor Vehicles: Hearings before the United States House Committee on Interstate and Foreign Commerce, Subcommittee on Public Health and Welfare, Ninety-First Congress, first session, on June 19, 1969. U.S. G.P.O..
Chicago Style (17th ed.) CitationUnited States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Public Health and Welfare and ProQuest (Firm). Air Pollution Control Research into Fuels and Motor Vehicles: Hearings Before the United States House Committee on Interstate and Foreign Commerce, Subcommittee on Public Health and Welfare, Ninety-First Congress, First Session, on June 19, 1969. Washington: U.S. G.P.O., 1969.
MLA (9th ed.) CitationUnited States. Congress. House. Committee on Interstate and Foreign Commerce. Subcommittee on Public Health and Welfare and ProQuest (Firm). Air Pollution Control Research into Fuels and Motor Vehicles: Hearings Before the United States House Committee on Interstate and Foreign Commerce, Subcommittee on Public Health and Welfare, Ninety-First Congress, First Session, on June 19, 1969. U.S. G.P.O., 1969.