@misc{indiciae1b563eaed02a,
  title = {Preliminary report on Kokomo mining district, Colorado},
  author = {A. H. Koschmann and J. W. Odell},
  year = {1945},
  doi = {10.3133/ofr4552},
  url = {https://pubs.usgs.gov/publication/ofr4552},
  note = {Source identifier: ofr4552}
}