@misc{indiciaead738dea8e6f,
  title = {The igneous rocks of the Highwood Mountains of central Montana},
  author = {Esper S. Larsen and C.S. Hurlbut and C.H. Burgess and D. T. Griggs and Bennett Frank Buie},
  year = {2014},
  doi = {10.1029/tr016i001p00288},
  url = {https://pubs.usgs.gov/publication/70220031},
  note = {Source identifier: 70220031}
}