@misc{indiciaeb901501ce0a6,
  title = {Preliminary photogeologic maps of Naval Petroleum Reserve No. 4, and adjacent areas, Alaska},
  author = {Alaskan Geology Branch},
  year = {1954},
  doi = {10.3133/ofr547},
  url = {https://pubs.usgs.gov/publication/ofr547},
  note = {Source identifier: ofr547}
}