@misc{indiciae82f5308b4a2b,
  title = {Thorium in the United States},
  author = {Mortimer Hay Staatz},
  year = {1976},
  doi = {10.3133/ofr76192},
  url = {https://pubs.usgs.gov/publication/ofr76192},
  note = {Source identifier: ofr76192}
}