@misc{indiciae154d389521eb,
  title = {Geohydrology and water resources of the Tucson basin, Arizona},
  author = {E. S. Davidson},
  year = {1970},
  doi = {10.3133/ofr7095},
  url = {https://pubs.usgs.gov/publication/ofr7095},
  note = {Source identifier: ofr7095}
}