GE core engine noise investigation - low emission engines /

Mode of access: Internet.

Noise emission measurements for regulatory purposes /

Mode of access: Internet.

National emission standards study : report : appendix : a report to the Congress of the United States by the Secretary of Health, Education, and Welfare, in compliance with Public Law 90-148 : Clean Air Act, as amended.

Includes bibliographies.

Reanalysis of the effect of proposals to relax vehicle emission standards on Chicago air quality : three reports and a summary.

"April, 1982."