@misc{indiciae9c22c6299210,
  title = {Age of the basement rocks of southwest Montana},
  author = {H. L. James and C. E. Hedge},
  year = {1980},
  doi = {10.1130/0016-7606(1980)91<11:aotbro>2.0.co;2},
  url = {https://pubs.usgs.gov/publication/70012066},
  note = {Source identifier: 70012066}
}