@misc{indiciae8d45f35cf282,
  title = {Geologic mapping in Alaska, U.S. Geological Survey, post 1930, scales 1:20,000 to 1:63,360},
  author = {Susan Bartsch-Winkler},
  year = {1976},
  doi = {10.3133/ofr76552},
  url = {https://pubs.usgs.gov/publication/ofr76552},
  note = {Source identifier: ofr76552}
}