01585nam a2200313 a 4500001001200000003000800012006001900020007001500039008004100054010001700095020001500112040002100127035002000148050002200168082002300190110010900213245028400322260005500606300003000661504006400691533015200755610005500907650005800962650006001020655002901080710001701109856012601126999001901252ebr10055296CaPaEBRm        u        cr cn|||||||||920707s1992    dcuab   sb    001 0 eng    z   92026303   z0309047811  aCaPaEBRcCaPaEBR  a(OCoLC)4347569214aSB482b.A3 1992eb04a333.78/15/09732201 aUnited States.bCommittee on Improving the Science and Technology Programs of the National Park Service.10aScience and the national parksh[electronic resource] /cCommittee on Improving the Science and Technology Programs of the National Park Service [and] Board on Environmental Studies and Toxicology, Commission on Geosciences, Environment, and Resources, National Research Council.  aWashington, D.C. :bNational Academy Press,c1992.  axii, 122 p. :bill., map.  aIncludes bibliographical references (p. 113-115) and index.  aElectronic reproduction.bPalo Alto, Calif. :cebrary,d2013.nAvailable via World Wide Web.nAccess may be limited to ebrary affiliated libraries.10aUnited States.bNational Park ServicexManagement. 0aNational parks and reservesxResearchzUnited States. 0aNational parks and reserveszUnited StatesxManagement. 7aElectronic books.2local2 aebrary, Inc.40uhttp://site.ebrary.com/lib/rucke/Doc?id=10055296zAn electronic book accessible through the World Wide Web; click to view  c167847d167847