@misc{indiciae6b399f1c73e9,
  title = {Geology and mining history of the Southeast Missouri Barite District and the Valles Mines, Washington, Jefferson, and St. Francois Counties, Missouri},
  author = {Douglas N. Mugel},
  year = {2017},
  doi = {10.3133/sir20165173},
  url = {https://pubs.usgs.gov/publication/sir20165173},
  note = {Source identifier: sir20165173}
}