@misc{indiciae0e9ec1507146,
  title = {The surface-water supply of the lower Colorado River area},
  author = {A. G. Hely},
  year = {1961},
  doi = {10.3133/ofr6161},
  url = {https://pubs.usgs.gov/publication/ofr6161},
  note = {Source identifier: ofr6161}
}