United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division. (2002). Nonconformance penalties for 2004 and later model year emission standards for heavy-duty diesel engines and heavy-duty diesel vehicles: Response to comments. United States Environmental Protection Agency, Air and Radiation.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division. Nonconformance Penalties for 2004 and Later Model Year Emission Standards for Heavy-duty Diesel Engines and Heavy-duty Diesel Vehicles: Response to Comments. [Washington, D.C.]: United States Environmental Protection Agency, Air and Radiation, 2002.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division. Nonconformance Penalties for 2004 and Later Model Year Emission Standards for Heavy-duty Diesel Engines and Heavy-duty Diesel Vehicles: Response to Comments. United States Environmental Protection Agency, Air and Radiation, 2002.