@misc{indiciaec7a7e3b920fc,
  title = {Geologic map of the Toston quadrangle, southwestern Montana},
  author = {G. D. Robinson},
  year = {1967},
  doi = {10.3133/i486},
  url = {https://pubs.usgs.gov/publication/i486},
  note = {Source identifier: i486}
}