@misc{indiciae0d70fdc0a9f3,
  title = {Semiquantitative spectrographic analysis of drill core from Sunbeam mine, Custer County, Idaho},
  author = {K. M. Johnson},
  year = {1987},
  doi = {10.3133/ofr87669},
  url = {https://pubs.usgs.gov/publication/ofr87669},
  note = {Source identifier: ofr87669}
}