@misc{indiciae59e7bfad97e1,
  title = {Depositional history of Triassic rocks in the area of the Powder River basin, northeastern Wyoming and southeastern Montana},
  author = {Edward A. Johnson},
  year = {1993},
  doi = {10.3133/b1917p},
  url = {https://pubs.usgs.gov/publication/b1917P},
  note = {Source identifier: b1917P}
}