@misc{indiciaeb246479027b7,
  title = {Preliminary photogeologic maps of Naval Petroleum Reserve No. 4 and adjacent areas, Alaska},
  author = {Alaskan Geological Branch},
  year = {1954},
  doi = {10.3133/ofr548},
  url = {https://pubs.usgs.gov/publication/ofr548},
  note = {Source identifier: ofr548}
}