@misc{indiciaece6323b41e7b,
  title = {Multiple glaciation of the Yukon-Tanana Upland, Alaska},
  author = {T. L. Pewe and Lawrence Burbank and L.R. Mayo},
  year = {1967},
  doi = {10.3133/i507},
  url = {https://pubs.usgs.gov/publication/i507},
  note = {Source identifier: i507}
}