@misc{indiciaed846ee3fab85,
  title = {Selected geologic data from the Northern Great Plains area of Montana},
  author = {R.D. Feltis and B. D. Lewis and R.L. Frasure and R.P. Rioux and C.A. Jauhola and W. R. Hotchkiss},
  year = {1981},
  doi = {10.3133/ofr81415},
  url = {https://pubs.usgs.gov/publication/ofr81415},
  note = {Source identifier: ofr81415}
}