Air pollution
Subtitle: reliability of EPA's mobile source emission model could be improved : report to the Chairman, Subcommittee on Oversight and Investigations, Committee on Energy and Commerce, House of Representatives
By: United States General Accounting Office.
Publisher: The Office
Published: 1990
Place of publication: Washington, D.C
Language: eng
Subjects: Air -- Pollution -- United States -- Mathematical models.; Air quality management -- United States -- Mathematical models.; Motor vehicles -- United States -- Motors -- Mathematical models.
Other titles: Reliability of EPA's mobile source emission model could be improved.
Notes: Cover title.

Distributed to depository libraries in microfiche.

"May 1990."

"GAO/RCED-90-138."

"B-239214"--P. 1.