@misc{indiciaedaf3de8b637a,
  title = {Placer gold occurrences in Alaska},
  author = {E. H. Cobb},
  year = {1981},
  doi = {10.3133/ofr811326},
  url = {https://pubs.usgs.gov/publication/ofr811326},
  note = {Source identifier: ofr811326}
}