@misc{indiciaea4ec7ec556aa,
  title = {Photogeologic map of the lower Koyukuk Cretaceous basin, west-central Alaska},
  author = {John T. Cass},
  year = {1955},
  doi = {10.3133/ofr5526},
  url = {https://pubs.usgs.gov/publication/ofr5526},
  note = {Source identifier: ofr5526}
}