@misc{indiciaed8b045ec473b,
  title = {Rare metals},
  author = {F. L. Hess and G. B. Richardson and Hoyt S. Gale and F.B. Weeks and Douglas B. Sterrett and Arthur J. Collier},
  year = {1908},
  doi = {10.3133/b340d},
  url = {https://pubs.usgs.gov/publication/b340D},
  note = {Source identifier: b340D}
}