@misc{indiciaeff5fb3b4f5c8,
  title = {Preliminary geologic map of the Oat Mountain 7.5' quadrangle, southern California: A digital database},
  author = {R.F. Yerkes and Russell H. Campbell},
  year = {1995},
  doi = {10.3133/ofr9589},
  url = {https://pubs.usgs.gov/publication/ofr9589},
  note = {Source identifier: ofr9589}
}