@misc{indiciae963f38bf212c,
  title = {Copper-silver deposits of the Revett Formation, Montana and Idaho: Origin and resource potential},
  author = {Thomas P. Frost and Michael L. Zientek},
  year = {2006},
  doi = {10.3133/fs20063072},
  url = {https://pubs.usgs.gov/publication/fs20063072},
  note = {Source identifier: fs20063072}
}