@misc{indiciae30950bb04d28,
  title = {Map showing coal fields and distribution of coal-bearing rocks in the western part of southern Alaska},
  author = {Carleen D. Holloway},
  year = {1977},
  doi = {10.3133/ofr77169i},
  url = {https://pubs.usgs.gov/publication/ofr77169I},
  note = {Source identifier: ofr77169I}
}