National Renewable Energy Laboratory (U.S.) & United States. Department of Energy. Office of Energy Efficiency and Renewable Energy. (2005). Assisting transit agencies with natural gas bus technologies. U.S. Dept. of Energy, Energy Efficiency and Renewable Energy.
Chicago Style (17th ed.) CitationNational Renewable Energy Laboratory (U.S.) and United States. Department of Energy. Office of Energy Efficiency and Renewable Energy. Assisting Transit Agencies with Natural Gas Bus Technologies. [Washington, D.C.]: U.S. Dept. of Energy, Energy Efficiency and Renewable Energy, 2005.
MLA (9th ed.) CitationNational Renewable Energy Laboratory (U.S.) and United States. Department of Energy. Office of Energy Efficiency and Renewable Energy. Assisting Transit Agencies with Natural Gas Bus Technologies. U.S. Dept. of Energy, Energy Efficiency and Renewable Energy, 2005.