01711nam a2200349 a 4500001001200000003000800012005001700020006001900037007001500056008004100071010001700112015001500129016001900144020002100163040002100184035002100205050002300226082002200249090001700271110013800288245031400426260007500740300003500815504004100850533015200891610006101043650005301104655003401157710002201191856013101213999001701344ebr10032378CaPaEBR20260707174319.0m        u        cr cn|||||||||020509s2002    enka    sb    000 0 eng d  z  2002001389  aGBA2-330897 a03090830522Uk  z0309083052(pbk.)  aCaPaEBRcCaPaEBR  a(OCoLC)64724871214aTD223b.N38 2002eb04a363.739420973221  c73937d640072 aNational Research Council (U.S.).bCommittee to Improve the U.S. Geological Survey National Water-Quality Assessment Program.910161410aOpportunities to improve the U.S. Geological Survey National Water Quality Assessment Programh[electronic resource] /cCommittee to Improve the U.S. Geological Survey National Water Quality Assessment Program, Water Science and Technology Board, Division on Earth and Life Studies, National Research Council.  aWashington, D.C. ;a[Great Britain] :bNational Academy Press,cc2002.  axiii, 238 p. :bill. ;c23 cm.  aIncludes bibliographical references.  aElectronic reproduction.bPalo Alto, Calif. :cebrary,d2009.nAvailable via World Wide Web.nAccess may be limited to ebrary affiliated libraries.20aNational Water-Quality Assessment Program (U.S.)9101615 0aWater quality managementzUnited States.9101616 7aElectronic books.2local91902 aebrary, Inc.919140uhttp://site.ebrary.com/lib/strathmore/Doc?id=10032378zAn electronic book accessible through the World Wide Web; click to view  c73937d64007