@misc{indiciaec9786ef82bfb,
  title = {A field-trip guide to Yellowstone National Park, Wyoming, Montana, and Idaho: Volcanic, hydrothermal, and glacial activity in the region},
  author = {Robert O. Fournier and R.L. Christiansen and R. A. Hutchinson and K. L. Pierce},
  year = {1994},
  doi = {10.3133/b2099},
  url = {https://pubs.usgs.gov/publication/b2099},
  note = {Source identifier: b2099}
}