PRR, Inc, United States. Environmental Protection Agency. Office of Transportation and Air Quality, & United States. National Highway Traffic Safety Administration. (2010). Environmental Protection Agency fuel economy label: Phase 2 focus groups. Office of Transportation and Air Quality, U.S. Environmental Protection Agency, and National Highway Traffic Safety Administration U.S. Dept. of Transportation.
Chicago Style (17th ed.) CitationPRR, Inc, United States. Environmental Protection Agency. Office of Transportation and Air Quality, and United States. National Highway Traffic Safety Administration. Environmental Protection Agency Fuel Economy Label: Phase 2 Focus Groups. [Washington, D.C.]: Office of Transportation and Air Quality, U.S. Environmental Protection Agency, and National Highway Traffic Safety Administration U.S. Dept. of Transportation, 2010.
MLA (9th ed.) CitationPRR, Inc, et al. Environmental Protection Agency Fuel Economy Label: Phase 2 Focus Groups. Office of Transportation and Air Quality, U.S. Environmental Protection Agency, and National Highway Traffic Safety Administration U.S. Dept. of Transportation, 2010.