United States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division. (1997). Conversion factors for hydrocarbon emission components: NR-002. 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. Conversion Factors for Hydrocarbon Emission Components: NR-002. [Washington, D.C.]: United States Environmental Protection Agency, Air and Radiation, 1997.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Office of Transportation and Air Quality. Assessment and Standards Division. Conversion Factors for Hydrocarbon Emission Components: NR-002. United States Environmental Protection Agency, Air and Radiation, 1997.