@misc{indiciae1f194132f8fe,
  title = {Preliminary geologic map of upper zones of the western end of the Stillwater Complex, Park and Sweetgrass counties, Montana},
  author = {Kenneth K. Segerstrom and Robert R. Carlson},
  year = {1977},
  doi = {10.3133/ofr77370},
  url = {https://pubs.usgs.gov/publication/ofr77370},
  note = {Source identifier: ofr77370}
}