@misc{indiciaebc0aa5ff39b0,
  title = {Aeromagnetic maps of Chignik and Sutwik Island quadrangles, Alaska, 1:63,360},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1978},
  doi = {10.3133/ofr78263},
  url = {https://pubs.usgs.gov/publication/ofr78263},
  note = {Source identifier: ofr78263}
}