@misc{indiciae700ef70ed2d6, title = {Surface water supply of the United States, 1938, Part IX, Colorado River basin}, author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey}, year = {1939}, doi = {10.3133/wsp859}, url = {https://pubs.usgs.gov/publication/wsp859}, note = {Source identifier: wsp859} }