@misc{indiciae748efcb4655f,
  title = {Digital version of "Open-File Report 92-182: Geologic map of the Marl Mountains quadrangle, San Bernardino County, California"},
  author = {Howard G. Wilshire and David R. Bedford and Teresa Coleman},
  year = {2002},
  doi = {10.3133/ofr02271},
  url = {https://pubs.usgs.gov/publication/ofr02271},
  note = {Source identifier: ofr02271}
}