@misc{indiciae26f0fca9b403,
  title = {Structural geology of the Terlingua quicksilver district, Texas},
  author = {George Albert Thompson},
  year = {1950},
  doi = {10.3133/ofr509},
  url = {https://pubs.usgs.gov/publication/ofr509},
  note = {Source identifier: ofr509}
}