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Ann Arbor, Michigan : U.S. Environmental Protection Agency, Office of Air and Radiation : Office of Mobile Sources, Engineering Operations Division, Testing Services Group, January 1984.
1984-
Smith, Lawrence R., author.
Ann Arbor, Michigan : United States Environmental Protection Agency, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, August 1982.
1982-
McCarthy, Aaron D., author.
Ann Arbor, MI : U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Mobile Sources, Engineering Operations Division, April 1990.
1990-