@misc{indiciae6b7a86d6ed57,
  title = {U.S. Geological Survey ground-water studies in Arizona},
  author = {H. H. Schumann},
  year = {1988},
  doi = {10.3133/ofr88164},
  url = {https://pubs.usgs.gov/publication/ofr88164},
  note = {Source identifier: ofr88164}
}