[Ann Arbor, Mich.] : U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Mobile Sources, Emission Control Technology Division, Technical Supoort Staff, 1986
Ann Arbor, Mich. : U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Sources, Emission Control Technology Division, Technical Support Staff, 1983
Ann Arbor, Mich. : U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Sources, Emission Control Technology Division, Technical Support Staff, 1983
Ann Arbor, Michigan : U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Mobile Source Air Pollution Control, Emission Control Technology Division, Control Technology Assessment and Characterization Branch, January 1982
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