Development of systems to attain established motor vehicle and engine emission standards
Subtitle: report of the Administrator of the Environmental Protection Agency to the Congress of the United States in compliance with Public law 90-148, the Clean air act, as amended.
Series: 92d Congress, 1st session. Senate. Document no. 92-39; Senate document (United States. Congress. Senate) ;; no. 92-39.
Publisher: U.S. Govt. Print. Off.
Published: 1971
Place of publication: Washington
Language: eng
Subjects: Automobiles -- Motors -- Exhaust gas.; Motor vehicles -- Pollution control devices.