@misc{indiciaed1dcbb574bdc,
  title = {Geologic map of the Badlands National Monument and vicinity, west-central South Dakota},
  author = {W. H. Raymond and R.U. King},
  year = {1976},
  doi = {10.3133/i934},
  url = {https://pubs.usgs.gov/publication/i934},
  note = {Source identifier: i934}
}