Region 5 air quality
Subtitle: special section : autos and air pollution
By: U.S. Environmental Protection Agency, Region 5.
Contributors: United States. Environmental Protection Agency. Region V.
Publisher: The Region
Published: 1984
Place of publication: Chicago, Ill
Language: eng
Number of pages: 28
Subjects: Air -- Pollution -- United States.
Other titles: Region five air quality.
Notes: Cover title.

"September 1984."