@misc{indiciae65e038a61cd1,
  title = {Mineral resources of Alaska, report on progress of investigations in 1911--Preface and administrative report},
  author = {A. H. Brooks},
  year = {1912},
  doi = {10.3133/b520a},
  url = {https://pubs.usgs.gov/publication/b520A},
  note = {Source identifier: b520A}
}