@misc{indiciaecaef0364bd54,
  title = {Geology and ore deposits of the southwestern Arkansas quicksilver district},
  author = {John C. Reed and Francis Gerritt Wells},
  year = {1938},
  doi = {10.3133/b886c},
  url = {https://pubs.usgs.gov/publication/b886C},
  note = {Source identifier: b886C}
}