@misc{indiciaecef823d4b8ac,
  title = {Metallic mineral resources map of the Bettles Quadrangle, Alaska},
  author = {Edward H. Cobb},
  year = {1972},
  doi = {10.3133/mf387},
  url = {https://pubs.usgs.gov/publication/mf387},
  note = {Source identifier: mf387}
}