@misc{indiciae105a1960da70,
  title = {Mineral production and mining trends for selected non-fuel commodities in Idaho and Montana, 1905-2001},
  author = {Jeremy C. Larsen and Keith R. Long and Kenneth C. Assmus and Michael L. Zientek},
  year = {2004},
  doi = {10.3133/ofr20041414},
  url = {https://pubs.usgs.gov/publication/ofr20041414},
  note = {Source identifier: ofr20041414}
}