@misc{indiciaec7edc08cbfde,
  title = {Preliminary geologic map of the Newbury Park 7.5' quadrangle, southern California},
  author = {R.F. Yerkes and R. H. Campbell},
  year = {1997},
  doi = {10.3133/ofr97428},
  url = {https://pubs.usgs.gov/publication/ofr97428},
  note = {Source identifier: ofr97428}
}