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Air quality criteria for carbon monoxide
National Center for Environmental Assessment (Research Triangle Park, N.C.)
1 volume (various pagings) : illustrations ; 28 cm.
Distributed to depository libraries in microfiche on shipping list number: 2001-0259-M.
Also available via Internet from the EPA web site (pdf file only). Address as of 10/05/00: http://www.epa.gov/nceawww1/pdfs/coaqcd.pdf ; current access is available via PURL.