United States. Environmental Protection Agency. Office of Transportation and Air Quality. (2008). Regulation of fuels and fuel additives: Modifications to renewable fuel standard program requirements. U. S. Environmental Protection Agency, Office of Transportation and Air Quality.
Chicago Style (17th ed.) CitationUnited States. Environmental Protection Agency. Office of Transportation and Air Quality. Regulation of Fuels and Fuel Additives: Modifications to Renewable Fuel Standard Program Requirements. Washington, D.C.: U. S. Environmental Protection Agency, Office of Transportation and Air Quality, 2008.
MLA (9th ed.) CitationUnited States. Environmental Protection Agency. Office of Transportation and Air Quality. Regulation of Fuels and Fuel Additives: Modifications to Renewable Fuel Standard Program Requirements. U. S. Environmental Protection Agency, Office of Transportation and Air Quality, 2008.