@misc{indiciae23931e47c03a,
  title = {Geologic map and structure sections of the Shaktolik River area, Alaska},
  author = {W.W. Patton and R.S. Bickel},
  year = {1956},
  doi = {10.3133/i226},
  url = {https://pubs.usgs.gov/publication/i226},
  note = {Source identifier: i226}
}