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Analysis of the relative effectiveness of different short tests for 1980+ vehicles : draft report.

Ann Arbor, Michigan : Environmental Protection Agency, 1995. 1995

An evaluation of restorative maintenance on exhaust emissions from 1975/1976 in-use automobiles in C

Farrell, Patrick, author.
[Ann Arbor, Mich.] : Technology Assessment and Evaluation Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, U.S. Environmental Protection Agency, October, 1978. 1978-

Restorative maintenance retesting of 1977 model year passenger cars in Denver

Jones, Gary T., author.
[Ann Arbor, Mich.] : Technology Assessment and Evaluation Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Office of Air and Waste Management, U.S. Environmental Protection Agency, November, 1978. 1978-