@misc{indiciae6d8199e80506,
  title = {The geology and ore deposits of the Coeur d'Alene district, Idaho},
  author = {F. L. Ransome and Frank Cathcart Calkins},
  year = {1908},
  doi = {10.3133/pp62},
  url = {https://pubs.usgs.gov/publication/pp62},
  note = {Source identifier: pp62}
}