@misc{indiciae562b55fcbc18,
  title = {Metallic mineral resources map of the Beaver Quadrangle, Alaska},
  author = {E. H. Cobb},
  year = {1972},
  doi = {10.3133/mf439},
  url = {https://pubs.usgs.gov/publication/mf439},
  note = {Source identifier: mf439}
}