@misc{indiciaee9ffdd1199f2,
  title = {Mining developments in the Matanuska coal fields; Lode developments in the Willow Creek district},
  author = {Theodore Chapin},
  year = {1920},
  doi = {10.3133/b712e},
  url = {https://pubs.usgs.gov/publication/b712E},
  note = {Source identifier: b712E}
}