@misc{indiciae88a22e291429,
  title = {Preliminary geologic map of the north-central San Bernardino Mountains, California},
  author = {J. C. Matti},
  year = {1993},
  doi = {10.3133/ofr93544},
  url = {https://pubs.usgs.gov/publication/ofr93544},
  note = {Source identifier: ofr93544}
}