@misc{indiciae82a8398aaaad,
  title = {Geology and uranium deposits in the Cave Hills area, Harding County, South Dakota},
  author = {G. N. Pipiringos and W.A. Chisholm and R.C. Kepferle},
  year = {1965},
  doi = {10.3133/pp476a},
  url = {https://pubs.usgs.gov/publication/pp476A},
  note = {Source identifier: pp476A}
}