@misc{indiciae41e39b708845,
  title = {Summary appraisals of the nation's ground-water resources – California region},
  author = {H. E. Thomas and D. A. Phoenix},
  year = {1976},
  doi = {10.3133/pp813e},
  url = {https://pubs.usgs.gov/publication/pp813E},
  note = {Source identifier: pp813E}
}