@misc{indiciae412d8a3cfece,
  title = {Preliminary geologic map of the Blythe 30' by 60' quadrangle, California and Arizona},
  author = {Paul Stone},
  year = {1990},
  doi = {10.3133/ofr90497},
  url = {https://pubs.usgs.gov/publication/ofr90497},
  note = {Source identifier: ofr90497}
}