@misc{indiciaeca81bf4ae391,
  title = {Water resources of lower Colorado River-Salton Sea area as of 1971; summary report},
  author = {C. C. McDonald and Omar J. Loeltz},
  year = {1976},
  doi = {10.3133/pp486a},
  url = {https://pubs.usgs.gov/publication/pp486A},
  note = {Source identifier: pp486A}
}