@misc{indiciae4a80f8c623db,
  title = {Mineral resources of the United States, 1923: Part I - Metals},
  author = {Frank James Katz},
  year = {1927},
  doi = {10.3133/70175849},
  url = {https://pubs.usgs.gov/publication/70175849},
  note = {Source identifier: 70175849}
}