@misc{indiciae8e077a3134e9,
  title = {Preliminary geologic map of the Sonora Pass 15-minute quadrangle, California},
  author = {James R. Giusso},
  year = {1981},
  doi = {10.3133/ofr811170},
  url = {https://pubs.usgs.gov/publication/ofr811170},
  note = {Source identifier: ofr811170}
}