@misc{indiciae8c7e7655d8ac,
  title = {Geology of the Williston basin, North Dakota, Montana, and South Dakota, with reference to subsurface disposal of radioactive wastes},
  author = {C. A. Sandberg},
  year = {1962},
  doi = {10.3133/ofr62115},
  url = {https://pubs.usgs.gov/publication/ofr62115},
  note = {Source identifier: ofr62115}
}