@misc{indiciae07ed66fa9cf2,
  title = {Geochemical analyses of copper-silver bearing rocks in the Spokane Formation (Belt Supergroup), Lewis and Clark County, Montana},
  author = {Jon J. Connor and J.M. McNeal and J.G. Crock},
  year = {1979},
  doi = {10.3133/ofr791440},
  url = {https://pubs.usgs.gov/publication/ofr791440},
  note = {Source identifier: ofr791440}
}