01510nam a2200325 a 4500001001200000003000800012006001900020007001500039008004100054010001700095020002200112040002100134035002100155050002500176082001800201245027800219260005500497300003000552504005400582533015200636650004800788650003100836650004300867650004800910650003700958655002900995710001701024856012601041999001701167ebr10068445CaPaEBRm        u        cr cn|||||||||930113s1993    dcuab   sb    000 0 eng    z   93083079   z0309048443 (pbk.)  aCaPaEBRcCaPaEBR  a(OCoLC)72682311214aTD884.5b.P76 1993eb04a363.73/9222000aProtecting visibility in national parks and wilderness areash[electronic resource] /cCommittee on Haze in National Parks and Wilderness Areas, Board on Environmental Studies and Toxicology, Commission on Geosciences, Environment, and Resources, National Research Council.  aWashington, D.C. :bNational Academy Press,c1993.  axv, 446 p. :bill., maps.  aIncludes bibliographical references (p. 265-313).  aElectronic reproduction.bPalo Alto, Calif. :cebrary,d2013.nAvailable via World Wide Web.nAccess may be limited to ebrary affiliated libraries. 0aHazexEnvironmental aspectszUnited States. 0aVisibilityzUnited States. 0aAir quality managementzUnited States. 0aNational parks and reserveszUnited States. 0aWilderness areaszUnited States. 7aElectronic books.2local2 aebrary, Inc.40uhttp://site.ebrary.com/lib/rucke/Doc?id=10068445zAn electronic book accessible through the World Wide Web; click to view  c41588d41588