@misc{indiciaeb7e314b366d0,
  title = {Stratigraphy of the Fort Union Formation in the eastern part of the Fort Peck Indian Reservation, Daniels, Roosevelt, and Sheridan counties, Montana},
  author = {John K. Hardie and Harold H. Arndt},
  year = {1989},
  doi = {10.3133/coal122b},
  url = {https://pubs.usgs.gov/publication/coal122B},
  note = {Source identifier: coal122B}
}