@misc{indiciae7908a35f4d14,
  title = {Surface water supply of the United States, 1928, Part IX, Colorado River basin},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1931},
  doi = {10.3133/wsp669},
  url = {https://pubs.usgs.gov/publication/wsp669},
  note = {Source identifier: wsp669}
}