@misc{indiciae2bdd84053dc7,
  title = {Geologic map of the Nabesna A-6 quadrangle, Alaska},
  author = {Donald H. Richter and Elizabeth Moll-Stalcup and Wendell A. Duffield and Nora B. Shew},
  year = {1997},
  doi = {10.3133/ofr97475},
  url = {https://pubs.usgs.gov/publication/ofr97475},
  note = {Source identifier: ofr97475}
}