@misc{indiciae99b8751f5d0b,
  title = {Map showing extent of glaciations in Alaska},
  author = {H.W. Coulter and D.M. Hopkins and T. N. V. Karlstrom and T. L. Pewe and Clyde Wahrhaftig and John R. Williams},
  year = {1965},
  doi = {10.3133/i415},
  url = {https://pubs.usgs.gov/publication/i415},
  note = {Source identifier: i415}
}