Pollution from cars on the road
Subtitle: problems in monitoring emission controls, Environmental Protection Agency : report of the Comptroller General of the United States.
Publisher: U.S. General Accounting Office
Published: 1977
Place of publication: [Washington
Language: eng
Number of pages: 21
Subjects: United States. Environmental Protection Agency.; Air -- Pollution -- United States.; Automobiles -- Motors -- Exhaust gas.
Notes: Cover title.
Publication date stamped on cover.
"CED-77-25."
"B-166506."