@misc{indiciae96e632dddc2c,
  title = {Aeromagnetic map of an area north of Safford, Arizona},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1981},
  doi = {10.3133/ofr8187},
  url = {https://pubs.usgs.gov/publication/ofr8187},
  note = {Source identifier: ofr8187}
}