- Physical Description: 1 online resource (4 unnumbered pages)
- Publisher: [Ann Arbor, Mich.] : Emission Control Technology Division, Office of Air and Water Programs, Environmental Protection Agency, July 1973.
|Source of Description Note:||
Description based on online resource; title from PDF cover (EPA, viewed on Aug. 27, 2020).
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|Subject:||Motor vehicles > Pollution control devices > Testing.
Motor vehicles > Motors > Exhaust gas > Analysis.