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100   $a20200203d1997      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aUpdate of heavy duty emission levels (model years 1988-2004+) for use in mobile 6 /$fChristian Lindhjem, Tracy Jackson
210  1$a[Ann Arbor, Mich.] :$cU.S. EPA Office of Mobile Sources, Assessment and Modeling Division,$d1997.
215   $a1 online resource (19 pages)
300   $a"Draft report no. M6HDE.001."
300   $a"October 15, 1997"--Page 1 of cover letter.
300   $a"Released for stakeholder review"--Page 1 of cover letter.
517   $aUpdate of heavy duty emission levels 
606   $aTrucks$xMotors$xExhaust gas$zUnited States$xInventories
606   $aDiesel motor exhaust gas$zUnited States
606   $aAutomobiles$xMotors$xExhaust gas$zUnited States$xInventories
615  0$aTrucks$xMotors$xExhaust gas$xInventories.
615  0$aDiesel motor exhaust gas
615  0$aAutomobiles$xMotors$xExhaust gas$xInventories.
700   $aLindhjem$b Christian E.$01394235
702   $aJackson$b Tracy
712 02$aUnited States.$bEnvironmental Protection Agency.$bAssessment and Modeling Division,
801  0$bGPO
801  1$bGPO
906   $aBOOK
912   $a9910712838803321
996   $aUpdate of heavy duty emission levels (model years 1988-2004+) for use in mobile 6$93451326
997   $aUNINA