@misc{indiciaef5c7284cd85f,
  title = {Tungsten in the United States, exclusive of Alaska and Hawaii},
  author = {D.M. Lemmon and Ogden L. Tweto},
  year = {1962},
  doi = {10.3133/mr25},
  url = {https://pubs.usgs.gov/publication/mr25},
  note = {Source identifier: mr25}
}