@misc{indiciae0c470707bf3f,
  title = {Geologic maps of Alaska-Canada boundary},
  author = {Alfred Geddes Maddren and J.M. Jessup},
  year = {1955},
  doi = {10.3133/ofr55105},
  url = {https://pubs.usgs.gov/publication/ofr55105},
  note = {Source identifier: ofr55105}
}