@misc{indiciae602cbe6aab25,
  title = {Geologic environment of an oxidized uranium deposit in the Black Hills, South Dakota},
  author = {Norman P. Cuppels},
  year = {1962},
  doi = {10.3133/b1063c},
  url = {https://pubs.usgs.gov/publication/b1063C},
  note = {Source identifier: b1063C}
}