Latest findings on national air quality : 1997 status and trends.
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Imprint: | Research Triangle Park, NC : U.S. Environmental Protection Agency, Office of Air Quality Planning and Standards, [1998] |
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Description: | 22, [1] p. : col. ill., col. maps ; 28 cm. |
Language: | English |
Subject: | |
Format: | E-Resource U.S. Federal Government Document Book |
URL for this record: | http://pi.lib.uchicago.edu/1001/cat/bib/6514887 |