@misc{indiciae2e5ba3dabc1b,
  title = {Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 2002},
  author = {Sandra L. Kinnaman and Leel Knowles},
  year = {2002},
  doi = {10.3133/ofr02434},
  url = {https://pubs.usgs.gov/publication/ofr02434},
  note = {Source identifier: ofr02434}
}