@misc{indiciae0c7165799d6b,
  title = {Aeromagnetic map of parts of Marquette, Dickinson, Baraga, Alger, and Schoolcraft Counties, Michigan, and its geologic interpretation},
  author = {J. E. Case and J. E. Gair},
  year = {1965},
  doi = {10.3133/gp467},
  url = {https://pubs.usgs.gov/publication/gp467},
  note = {Source identifier: gp467}
}