@misc{indiciaef3a6bef5a25c, title = {Surface water supply of the United States, 1923, Part IX, Colorado River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1927}, doi = {10.3133/wsp569}, url = {https://pubs.usgs.gov/publication/wsp569}, note = {Source identifier: wsp569} }