@misc{indiciae654a44c6e3d3,
  title = {Map showing total thickness of the Judith River Formation, Montana},
  author = {Richard D. Feltis},
  year = {1982},
  doi = {10.3133/wri824028},
  url = {https://pubs.usgs.gov/publication/wri824028},
  note = {Source identifier: wri824028}
}