@misc{indiciaefb43efc1b264,
  title = {Rocks of Permian (?) age in the Colorado River Valley, north-central Texas},
  author = {Raymond Cecil Moore},
  year = {1949},
  doi = {10.3133/om80},
  url = {https://pubs.usgs.gov/publication/om80},
  note = {Source identifier: om80}
}