@misc{indiciae488459a5ac40,
  title = {Thorium resources of selected regions in the United States},
  author = {Mortimer Hay Staatz and R.B. Hall and D. L. Macke and T.J. Armbrustmacher and I. K. Brownfield},
  year = {1980},
  doi = {10.3133/cir824},
  url = {https://pubs.usgs.gov/publication/cir824},
  note = {Source identifier: cir824}
}