02007oam 2200553 450 991071189540332120190123092500.0(CKB)5470000002487123(OCoLC)953695321(OCoLC)965811828(OCoLC)995470000002487123(EXLCZ)99547000000248712320160718d1971 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierReconnaissance of selected minor elements in surface waters of the United States, October 1970 /by W. H. Durum, J. D. Hem, and S. G. Heidel ; prepared in cooperation with the U.S. Bureau of Sport Fisheries and WildlifeWashington :United States Department of the Interior, Geological Survey,1971.1 online resource (vi, 49 pages) mapsGeological Survey circular ;643"As, Cd, Cr, Co, Pb, Hg, Zn"--Page [1].Includes bibliographical references (page 3).Trace elements in waterUnited StatesWater qualityUnited StatesTrace elements in waterfastWater qualityfastUnited StatesfastTrace elements in waterWater qualityTrace elements in water.Water quality.Durum W. H(Walton Henry),1917-1996,1393736Heidel Sumner Griggs1916-2013,Hem John David1916-Geological Survey (U.S.),United States.Bureau of Sport Fisheries and Wildlife.COPCOPOCLCOOCLCAOCLCFOCLCEOCLCAGPOBOOK9910711895403321Reconnaissance of selected minor elements in surface waters of the United States, October 19703450182UNINA