(2008). Average in-use emissions from heavy-duty trucks: Emission facts. United States Environmental Protection Agency, Office of Transportation and Air Quality.
Chicago Style (17th ed.) CitationAverage In-use Emissions from Heavy-duty Trucks: Emission Facts. [Washington, D.C.]: United States Environmental Protection Agency, Office of Transportation and Air Quality, 2008.
MLA (9th ed.) CitationAverage In-use Emissions from Heavy-duty Trucks: Emission Facts. United States Environmental Protection Agency, Office of Transportation and Air Quality, 2008.
Warning: These citations may not always be 100% accurate.