@misc{indiciaef4e62c9b9d12,
  title = {The Innoko gold-placer district, Alaska, with accounts of the central Kuskokwim Valley and the Ruby Creek and Gold Hill placers},
  author = {Alfred Geddes Maddren},
  year = {1910},
  doi = {10.3133/b410},
  url = {https://pubs.usgs.gov/publication/b410},
  note = {Source identifier: b410}
}