@misc{indiciaef93e8eb7a7cb,
  title = {Mineral resource potential of national forest RARE II and wilderness areas in Montana},
  author = {C. E. Williams and R. C. Pearson},
  year = {1984},
  doi = {10.3133/ofr84637},
  url = {https://pubs.usgs.gov/publication/ofr84637},
  note = {Source identifier: ofr84637}
}