@misc{indiciaef52b9c4cf6c8,
  title = {Photo-interpretation of vegetation along the southern part of the Alaska Highway; its use as an indicator of the kind of ground},
  author = {Hugh Miller Raup and Charles Storrow Denny},
  year = {1950},
  doi = {10.3133/ofr505},
  url = {https://pubs.usgs.gov/publication/ofr505},
  note = {Source identifier: ofr505}
}