Harvey, Craig A., author.
Ann Arbor, Michigan : Control Technology Assessment and Characterization Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Office of Air, Noise and Radiation, U.S Environmental Protection Agency, August 1981.
1981-
Carson, Bonnie L., author.
Ann Arbor, Michigan : Emission Control Technology Division, Office of Mobile Source Air Pollution Control, U.S. Environmental Protection Agency, September 11, 1981.
1981-