@misc{indiciae6c3eeffa5bc2,
  title = {Aeromagnetic map of the Casa Grande area, Maricopa and Pinal Counties, Arizona},
  author = {C. M. Mitchell and Gerald L. Zandle},
  year = {1965},
  doi = {10.3133/ofr65178},
  url = {https://pubs.usgs.gov/publication/ofr65178},
  note = {Source identifier: ofr65178}
}