Barth, Edward Anthony, author.
[Ann Arbor, Mich.] : Test and Evaluation Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Environmental Protection Agency, 1980.
1980
[Ann Arbor, Mich.] : Technology Assessment and Evaluation Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, U.S. Environmental Protection Agency, 1976.
1976
[Ann Arbor, Mich.] : Technology Assessment and Evaluation Branch, Emission Control Technology Division, Office of Mobile Source Air Pollution Control, Environmental Protection Agency, 1976.
1976