@misc{indiciae903063380529,
  title = {Geohydrology, water quality, and estimation of ground-water recharge in San Francisco, California, 1987-92},
  author = {S.P. Phillips and S. N. Hamlin and E.B. Yates},
  year = {1993},
  doi = {10.3133/wri934019},
  url = {https://pubs.usgs.gov/publication/wri934019},
  note = {Source identifier: wri934019}
}