@misc{indiciae46cc4f7f8964,
  title = {Gubik Formation of Quaternary age in northern Alaska},
  author = {R. F. Black},
  year = {1964},
  doi = {10.3133/pp302c},
  url = {https://pubs.usgs.gov/publication/pp302C},
  note = {Source identifier: pp302C}
}