@misc{indiciaea4f4b36a3793,
  title = {Aeromagnetic map of the northern part of the Ajo 1° by 2° quadrangle, Arizona},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1980},
  doi = {10.3133/ofr801126},
  url = {https://pubs.usgs.gov/publication/ofr801126},
  note = {Source identifier: ofr801126}
}