@misc{indiciae6fc10cb69000,
  title = {Geologic map of the 15-minute Hesperia quadrangle, San Bernardino County, California},
  author = {T. W. Dibblee},
  year = {1965},
  doi = {10.3133/ofr6543},
  url = {https://pubs.usgs.gov/publication/ofr6543},
  note = {Source identifier: ofr6543}
}