@misc{indiciae7f01ed6dc852,
  title = {Geology of the Powder River Basin, Wyoming and Montana, with reference to subsurface disposal of radioactive wastes},
  author = {Helen M. Beikman},
  year = {1962},
  doi = {10.3133/ofr627},
  url = {https://pubs.usgs.gov/publication/ofr627},
  note = {Source identifier: ofr627}
}