@misc{indiciae5478833b54a6,
  title = {Preliminary geologic map and sections along the lower Koyukuk River, Alaska},
  author = {William Wallace Patton and Robert Samuel Bickel},
  year = {1957},
  doi = {10.3133/ofr5786},
  url = {https://pubs.usgs.gov/publication/ofr5786},
  note = {Source identifier: ofr5786}
}