00721nam 2200157z- 450 9910712535903321(CKB)5470000002494795(EXLCZ)99547000000249479520230509c1960uuuu -u- -engQuality of surface waters of the United States, 1956. Parts 9-14, Colorado River Basin to Pacific slope basins in Oregon and lower Columbia River BasinWashington, D.CUnited States Department of the Interior, Geological SurveyBOOK9910712535903321Quality of surface waters of the United States, 1956. Parts 9-14, Colorado River Basin to Pacific slope basins in Oregon and lower Columbia River Basin3348314UNINA