@misc{indiciae407da610c31e,
  title = {Glacier observations, Glacier National Park, Montana, 1965},
  author = {Arthur Johnson},
  year = {1966},
  doi = {10.3133/ofr6668},
  url = {https://pubs.usgs.gov/publication/ofr6668},
  note = {Source identifier: ofr6668}
}