@misc{indiciae0a684151ad91,
  title = {Aerial gamma-ray maps of part of the southern Powder River basin in Converse County, Wyoming},
  author = {D. L. Macke and J. S. Duval and J. A. Pitkin},
  year = {1978},
  doi = {10.3133/mf956},
  url = {https://pubs.usgs.gov/publication/mf956},
  note = {Source identifier: mf956}
}