@misc{indiciaefd6246642658,
  title = {Aeromagnetic map of the Ketchikan, Prince Rupert, and northeastern Craig quadrangles, Alaska},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1977},
  doi = {10.3133/ofr77359},
  url = {https://pubs.usgs.gov/publication/ofr77359},
  note = {Source identifier: ofr77359}
}