@misc{indiciaef1f18a8ab801,
  title = {Preliminary geologic map of the San Guillermo Mountain Quadrangle, Ventura County, California},
  author = {S.A. Minor},
  year = {1999},
  doi = {10.3133/ofr9932},
  url = {https://pubs.usgs.gov/publication/ofr9932},
  note = {Source identifier: ofr9932}
}