Air quality: do we really know what it is?
Subtitle: report
By: by the Comptroller General of the United States.
Publisher: General Accounting Office
Published: 1979
Place of publication: [Washington]
Language: eng
Number of pages: 32
Subjects: Air quality -- United States.; Air quality monitoring stations.
Notes: Cover title.

"May 31, 1979."

"CED-79-84."

Includes appendix.