@misc{indiciae04bff0b027fe,
  title = {Notes on the mineral deposits of the Bearpaw Mountains, Montana: Survey publications on lead and zinc},
  author = {L.J. Pepperberg},
  year = {1910},
  doi = {10.3133/b430c},
  url = {https://pubs.usgs.gov/publication/b430C},
  note = {Source identifier: b430C}
}