@misc{indiciae9c87028f6f35,
  title = {Stratigraphic cross sections A-A' through F-F', showing electric logs of upper Cretaceous and older rocks, Powder River Basin, Montana and Wyoming},
  author = {J. E. Fox},
  year = {1993},
  doi = {10.3133/oc135},
  url = {https://pubs.usgs.gov/publication/oc135},
  note = {Source identifier: oc135}
}