@misc{indiciae1ec132be38a4,
  title = {Gold placers of the Ruby district. Gold placers of the Innoko-Iditarod region},
  author = {H. M. Eakin},
  year = {1913},
  doi = {10.3133/b542g},
  url = {https://pubs.usgs.gov/publication/b542G},
  note = {Source identifier: b542G}
}