@misc{indiciaecf4e01be47c7,
  title = {Results of core drilling for uranium-bearing lignite, Mendenhall area, Harding County, South Dakota},
  author = {James R. Gill},
  year = {1954},
  doi = {10.3133/tei456},
  url = {https://pubs.usgs.gov/publication/tei456},
  note = {Source identifier: tei456}
}