Quality of surface waters of the United States 1950. Parts 9-14, Colorado River basin to Pacific slope basins in Oregon and lower Columbia River basinU.S. Geological Survey(United States Department of the Interior)UnknownJanuary 1, 195410.3133/wsp1189Cited by 0SaveCiteExport RISWatch citationsRelated PapersSurface water supply of the United States, 1934, Part V, Hudson Bay and upper Mississippi River basins|Unknown|1936|0