@misc{indiciae3e9fc34e85ef,
  title = {Geology of the Wolf Point quadrangle, Montana},
  author = {Roger B. Colton},
  year = {1953},
  doi = {10.3133/ofr5339},
  url = {https://pubs.usgs.gov/publication/ofr5339},
  note = {Source identifier: ofr5339}
}