@misc{indiciaece310afd156e,
  title = {Mineral resources of Alaska, report on progress of investigations in 1917--Platinum-bearing auriferous gravels of Chistochina River},
  author = {Theodore Chapin},
  year = {1919},
  doi = {10.3133/b692c},
  url = {https://pubs.usgs.gov/publication/b692C},
  note = {Source identifier: b692C}
}