01792oam 2200505I 450 991070998290332120181204143400.0(CKB)5470000002474434(OCoLC)961366284(OCoLC)995470000002474434(EXLCZ)99547000000247443420161028d1963 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierChemical quality of surface waters in Pennsylvania /by Charles N. Durfor and Peter W. Anderson[Washington, D.C.] :United States Department of the Interior, Geological Survey,1963.Washington :United States Government Printing Office.1 online resource (iv, 50 pages) illustrations, mapsContributions to the hydrology of the United StatesGeological Survey water-supply paper ;1619-W"Prepared in cooperation with the Commonwealth of Pennsylvania Department of Commerce and Department of Forests and Waters."Includes bibliographical references (pages 46-47) and index.Water qualityPennsylvaniaWater qualityfastPennsylvaniafastWater qualityWater quality.Durfor Charles N(Charles Norman),1923-1994,1392361Anderson Peter W.Geological Survey (U.S.),COPCOPOCLCOOCLCFOCLCAGPOMERUCGPOBOOK9910709982903321Chemical quality of surface waters in Pennsylvania3523930UNINA