@misc{indiciae7d82b165f678,
  title = {Phosphatic oil shales near Dell and Dillon, Beaverhead County, Montana},
  author = {C. F. Bowen},
  year = {1918},
  doi = {10.3133/b661i},
  url = {https://pubs.usgs.gov/publication/b661I},
  note = {Source identifier: b661I}
}