@misc{indiciae91aeb69a5b9c,
  title = {Manganese deposits of the Talamantes district near Parral, Chihuahua, Mexico},
  author = {I.F. Wilson and V.S. Rocha},
  year = {1948},
  doi = {10.3133/b954e},
  url = {https://pubs.usgs.gov/publication/b954E},
  note = {Source identifier: b954E}
}