@misc{indiciaefeb419630f28,
  title = {Preliminary geologic map of the Los Angeles 7.5' quadrangle, southern California},
  author = {R.F. Yerkes},
  year = {1997},
  doi = {10.3133/ofr97254},
  url = {https://pubs.usgs.gov/publication/ofr97254},
  note = {Source identifier: ofr97254}
}