@misc{indiciae39a5b725b241,
  title = {Geologic map of the Putnam Wash quadrangle, Pinal County, Arizona},
  author = {Medora H. Krieger},
  year = {1969},
  doi = {10.3133/ofr69144},
  url = {https://pubs.usgs.gov/publication/ofr69144},
  note = {Source identifier: ofr69144}
}