United States. Environmental Protection Agency. Emission Standards and Engineering Division. (1977). Standards support and environmental impact statement. Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards, Standards Development Branch, Emission Standards and Engineering Division.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency. Emission Standards and Engineering Division. Standards Support and Environmental Impact Statement. Research Triangle Park, N.C.: Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards, Standards Development Branch, Emission Standards and Engineering Division, 1977.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Emission Standards and Engineering Division. Standards Support and Environmental Impact Statement. Environmental Protection Agency, Office of Air and Waste Management, Office of Air Quality Planning and Standards, Standards Development Branch, Emission Standards and Engineering Division, 1977.