@misc{indiciae9830bbca2839,
  title = {Glacier observations, Glacier National Park, Montana, 1959},
  author = {Arthur Johnson},
  year = {1960},
  doi = {10.3133/ofr6081},
  url = {https://pubs.usgs.gov/publication/ofr6081},
  note = {Source identifier: ofr6081}
}