@misc{indiciae80fd89eeb5ea,
  title = {Metamorphic differentiates in the blackbird mining district, Lemhi County, Idaho},
  author = {Wayne A. Roberts},
  year = {1953},
  doi = {10.2113/gsecongeo.48.6.447},
  url = {https://pubs.usgs.gov/publication/70221517},
  note = {Source identifier: 70221517}
}