(1973). Automobile emission control, the state of the art as of December 1972: A report to the Administrator, Environmental Protection Agency. [U.S. Environmental Protection Agency].
Chicago Style (17th ed.) CitationAutomobile Emission Control, the State of the Art as of December 1972: A Report to the Administrator, Environmental Protection Agency. [Washington, D.C.]: [U.S. Environmental Protection Agency], 1973.
MLA (9th ed.) CitationAutomobile Emission Control, the State of the Art as of December 1972: A Report to the Administrator, Environmental Protection Agency. [U.S. Environmental Protection Agency], 1973.
Warning: These citations may not always be 100% accurate.