01326nam 2200361I 450 991071284820332120200130125937.0(CKB)5470000002497701(OCoLC)1138023104(EXLCZ)99547000000249770120200130d1974 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierImpact on existing standards due to proposed instrumentation changes in the heavy duty FTP /William B. Clemmens[Ann Arbor, Mich.] :United States Environmental Protection Agency,1974.1 online resource (4 pages, 1 unnumbered page) illustrations"September 18, 1974."Includes bibliographical references (page 4).AutomobilesMotorsExhaust gasUnited StatesAirPollutionUnited StatesAutomobilesMotorsExhaust gasAirPollutionClemmens William B.1389632United States.Environmental Protection Agency,GPOGPOBOOK9910712848203321Impact on existing standards due to proposed instrumentation changes in the heavy duty FTP3448718UNINA