@misc{indiciaea630b80f5516,
  title = {Stratigraphy, micropaleontology, petrography, carbonate geochemistry, and depositional history of the Proterozoic Libby Formation, Belt Supergroup, northwestern Montana and northeastern Idaho},
  author = {D.L. Kidder},
  year = {1987},
  doi = {10.3133/ofr87635},
  url = {https://pubs.usgs.gov/publication/ofr87635},
  note = {Source identifier: ofr87635}
}