@misc{indiciae1960c64cf16d,
  title = {Reconnaissance geologic map of the Nulato quadrangle, Alaska},
  author = {J.T. Cass},
  year = {1959},
  doi = {10.3133/i291},
  url = {https://pubs.usgs.gov/publication/i291},
  note = {Source identifier: i291}
}