@misc{indiciaefa7ab6d50e60,
  title = {Reconnaissance surficial geologic maps of the Fillmore, Moorpark, Piru, and Simi 7.5' quadrangles, Ventura County, southern California},
  author = {Douglas M. Morton},
  year = {1976},
  doi = {10.3133/ofr76210},
  url = {https://pubs.usgs.gov/publication/ofr76210},
  note = {Source identifier: ofr76210}
}