@misc{indiciae1b35d17ccd4a,
  title = {Mineral resources of Alaska, report on progress of investigations in 1911--Notes on mining in Seward Peninsula},
  author = {P. S. Smith},
  year = {1912},
  doi = {10.3133/b520m},
  url = {https://pubs.usgs.gov/publication/b520M},
  note = {Source identifier: b520M}
}