@misc{indiciae69e18cda94ff,
  title = {Aeromagnetic map of the Kenton quadrangle, Gogebic, Ontonagon, Iron, and Houghton Counties, Michigan},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1967},
  doi = {10.3133/gp604},
  url = {https://pubs.usgs.gov/publication/gp604},
  note = {Source identifier: gp604}
}