@misc{indiciae0ad37e434080,
  title = {Digital version of "Open-File Report 92-181: Geologic map of the Indian Spring quadrangle, San Bernardino County, California"},
  author = {Howard G. Wilshire and David R. Bedford and Teresa Coleman},
  year = {2002},
  doi = {10.3133/ofr02272},
  url = {https://pubs.usgs.gov/publication/ofr02272},
  note = {Source identifier: ofr02272}
}