@misc{indiciae5c35eefdd51c,
  title = {Aeromagnetic map of the Ajo area, Arizona},
  author = {Members of the Engineering Geology and Ground Water Branches, U.S. Geological Survey},
  year = {1982},
  doi = {10.3133/ofr82665},
  url = {https://pubs.usgs.gov/publication/ofr82665},
  note = {Source identifier: ofr82665}
}