@misc{indiciae2de74c80db4f,
  title = {Preliminary report on the Ketchikan mining district, Alaska, with an introductory sketch of the geology of southeastern Alaska},
  author = {A. H. Brooks},
  year = {1902},
  doi = {10.3133/pp1},
  url = {https://pubs.usgs.gov/publication/pp1},
  note = {Source identifier: pp1}
}