Long, James B., 1939- author.
Ann Arbor, MI : Technology Assessment and Evaluation Branch, U.S. Environmental Protection Agency, Motor Vehicle Emission Laboratory, 1979.
1979
Platte, Lois, author.
[Ann Arbor, Mich.] : Test and Evaluation Branch, Emission Control Technology Division, Office of Air, Noise, and Radiation, United States Environmental Protection Agency, 1979.
1979
Piotrowski, Gregory K., author.
Ann Arbor, MI : U.S. Environmental Protection Agency, Office of Air and Radiation, Office of Mobile Sources, Regulatory Programs and Technology Division, Technology Development Group, December 1993.
1993-
[Ann Arbor, Mich.] : Technology Assessment and Evaluation Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Environmental Protection Agency, 1975.
1975