@misc{indiciaec615b4cfd474,
  title = {Contributions to economic geology 1907: Part I - Metals and nonmetals except fuels},
  author = {C. W. Hayes and Waldemar Lindgren},
  year = {1908},
  doi = {10.3133/b340},
  url = {https://pubs.usgs.gov/publication/b340},
  note = {Source identifier: b340}
}