@misc{indiciae4bd710983a09,
  title = {The Glacier National Park: A popular guide to its geology and scenery},
  author = {Marius R. Campbell},
  year = {1914},
  doi = {10.3133/b600},
  url = {https://pubs.usgs.gov/publication/b600},
  note = {Source identifier: b600}
}