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