@misc{indiciaeb8695eedef9a,
  title = {Lower Permian rocks of the Colorado River Valley, north-central Texas},
  author = {R.C. Moore},
  year = {1948},
  doi = {10.3133/ofr4820},
  url = {https://pubs.usgs.gov/publication/ofr4820},
  note = {Source identifier: ofr4820}
}