@misc{indiciae714b8340f86f,
  title = {Reconnaissance of the Conconully, and Ruby mining districts, Washington},
  author = {E. L. Jones},
  year = {1917},
  doi = {10.3133/b640b},
  url = {https://pubs.usgs.gov/publication/b640B},
  note = {Source identifier: b640B}
}