01584oam 2200397 450 991071692000332120220103111214.0(CKB)5470000002526999(OCoLC)1285974998(EXLCZ)99547000000252699920211122d1973 ua 0engur|||||||||||txtrdacontentcrdamediacrrdacarrierIndex to water-quality data available from the U.S. Geological Survey in machine-readable form to December 31, 1972, western region /Charles R. Showen and Owen 0. WilliamsWashington, D.C. :U.S. Geological Survey,1973.1 online resource (iii, 516 pages) illustrations, one mapWater-resources investigations ;24-73"June 1973.""This index has been prepared as part of the cataloging activities oh the Resources and Land information Program (RALI)."Information storage and retrieval systemsWater qualityWater qualityUnited StatesInformation storage and retrieval systemsWater quality.Water qualityShowen Charles R.1397721Williams Owen O.Geological Survey (U.S.),GPOGPOGPOBOOK9910716920003321Index to water-quality data available from the U.S. Geological Survey in machine-readable form to December 31, 1972, western region3459732UNINA