@misc{indiciae8b5dcd0f54f1,
  title = {Geohydrologic reconnaissance of the Imperial Valley, California},
  author = {Omar J. Loeltz and Burdge Irelan and J. H. Robison and F. H. Olmsted},
  year = {1975},
  doi = {10.3133/pp486k},
  url = {https://pubs.usgs.gov/publication/pp486K},
  note = {Source identifier: pp486K}
}