@misc{indiciae210dde911d25,
  title = {Map of slopes and selected geomorphic features, National Petroleum Reserve-Alaska},
  author = {Kathleen M. Johnson},
  year = {1978},
  doi = {10.3133/ofr78206},
  url = {https://pubs.usgs.gov/publication/ofr78206},
  note = {Source identifier: ofr78206}
}