@misc{indiciae7a8d4cd65c5a,
  title = {Memorandum on geology and ground-water resources in the vicinity of Oracle, Pinal County, Arizona},
  author = {L.A. Heindl},
  year = {1955},
  doi = {10.3133/ofr5564},
  url = {https://pubs.usgs.gov/publication/ofr5564},
  note = {Source identifier: ofr5564}
}