@misc{indiciaedf7411022e88,
  title = {Preliminary geologic map of the Calabasas 7.5' Quadrangle, Southern California},
  author = {R. F. Yerkes and P. K. Showalter},
  year = {1993},
  doi = {10.3133/ofr93205},
  url = {https://pubs.usgs.gov/publication/ofr93205},
  note = {Source identifier: ofr93205}
}