@misc{indiciae3993be767548, title = {Surface water supply of the United States, 1917, Part IX, Colorado River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1921}, doi = {10.3133/wsp459}, url = {https://pubs.usgs.gov/publication/wsp459}, note = {Source identifier: wsp459} }