@misc{indiciaeeb0f1622bcad,
  title = {The Alaskan mining industry in 1921},
  author = {A. H. Brooks},
  year = {1923},
  doi = {10.3133/b739a},
  url = {https://pubs.usgs.gov/publication/b739A},
  note = {Source identifier: b739A}
}