@misc{indiciaee5e468844d90,
  title = {Tin in the United States, exclusive of Alaska and Hawaii},
  author = {Pemberton Lewis Killeen and William Louis Newman},
  year = {1965},
  doi = {10.3133/mr44},
  url = {https://pubs.usgs.gov/publication/mr44},
  note = {Source identifier: mr44}
}