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101 0 $aeng
200 10$aOperational Characteristics Study : Columbus, Ohio Program
210   $aAnn Arbor, Mich$cStandards Development and Support Branch, Emission Control Technology Division, Office of Mobile Source, Office of Air and Radiation, U.S. Environmental Protection Agency
517   $aOperational Characteristics Study 
906   $aBOOK
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996   $aOperational Characteristics Study : Columbus, Ohio Program$93263202
997   $aUNINA