@misc{indiciae270c8d583f41,
  title = {Gravity and aeromagnetic maps of the Fishhooks, the Black Rock, and the Needles Eye Wilderness Study Areas, in Graham and Gila Counties, Arizona},
  author = {Craig F. Erdman},
  year = {1986},
  doi = {10.3133/ofr86353},
  url = {https://pubs.usgs.gov/publication/ofr86353},
  note = {Source identifier: ofr86353}
}