01761oam 2200457Ia 450 991069644080332120080428072154.0(CKB)5470000002378434(OCoLC)51730512(EXLCZ)99547000000237843420030224d1992 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierWater quality standards for the 21st century[electronic resource] proceedings of the third national conference, Las Vegas, Nevada, August 31-September 3, 1992 /[editor, Karen Swetlow]Washington, D.C. :U.S. Environmental Protection Agency, Office of Science and Technology,[1992]1 volume (various pagings) digital, PDF fileTitle from title screen (viewed on Feb. 24, 2003)."Prepared by Dynamac Corporation under contract no. 68-C0-0070"--P. ii."December 1992.""823-R-92-009."Includes bibliographical references.Water quality standards for the 21st century Water qualityStandardsCongressesWater quality managementCongressesConference papers and proceedings.lcgftWater qualityStandardsWater quality managementSwetlow Karen1416649United States.Environmental Protection Agency.Office of Science and Technology.Dynamac Corporation.AGLAGLOCLCQGPOBOOK9910696440803321Water quality standards for the 21st century3541062UNINA