@misc{indiciae4a121620d8e1,
  title = {Maps showing ground-water conditions in the lower San Pedro Basin area, Pinal, Cochise, Pima, and Graham Counties, Arizona—1979},
  author = {Susan C. Jones},
  year = {1980},
  doi = {10.3133/ofr80954},
  url = {https://pubs.usgs.gov/publication/ofr80954},
  note = {Source identifier: ofr80954}
}