@misc{indiciae18c8f06d23b5,
  title = {Geohydrology of the Yuma area, Arizona and California},
  author = {F. H. Olmsted and Omar J. Loeltz and Burdge Irelan},
  year = {1973},
  doi = {10.3133/pp486h},
  url = {https://pubs.usgs.gov/publication/pp486H},
  note = {Source identifier: pp486H}
}