@misc{indiciaeff5c257e8caf,
  title = {Geology and uranium deposits of the southern part of the Powder River Basin, Wyoming},
  author = {William N. Sharp and A. B. Gibbons},
  year = {1964},
  doi = {10.3133/b1147d},
  url = {https://pubs.usgs.gov/publication/b1147D},
  note = {Source identifier: b1147D}
}