TY - RPRT TI - Quality of surface waters of the United States, 1969, Parts 9 and 10, Colorado River basin and the Great Basin AU - Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey PY - 1974 DO - 10.3133/wsp2148 UR - https://pubs.usgs.gov/publication/wsp2148 ID - wsp2148 ER -