Protecting visibility : an EPA report to Congress / U.S. Environmental Protection Agency, Office of Air, Noise and Radiation, Office of Air Quality Planning and Standards.
- Physical Description: 1 online resource (xviii, 244 pages) : illustrations
- Publisher: Research Triangle Park, N.C. : U.S. Environmental Protection Agency, 1979.
|Bibliography, etc. Note:||
Includes bibliographical references.
|Source of Description Note:||
Description based on online resource; title from PDF cover (EPA website, viewed February 9, 2018).
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|Subject:||Air > Pollution > Standards > United States.