United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division. (2000). Control of emissions of air pollution from 2004 and later model year heavy-duty highway engines and 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. Control of Emissions of Air Pollution from 2004 and Later Model Year Heavy-duty Highway Engines and Vehicles: Response to Comments. [Washington, D.C.]: United States Environmental Protection Agency, Air and Radiation, 2000.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division. Control of Emissions of Air Pollution from 2004 and Later Model Year Heavy-duty Highway Engines and Vehicles: Response to Comments. United States Environmental Protection Agency, Air and Radiation, 2000.