@misc{indiciae5b6879283fe8,
  title = {Potentiometric Surface of the Upper Floridan Aquifer in the St. Johns River Water Management District and Vicinity, Florida, May 2006},
  author = {Sandra L. Kinnaman},
  year = {2006},
  doi = {10.3133/ofr20061394},
  url = {https://pubs.usgs.gov/publication/ofr20061394},
  note = {Source identifier: ofr20061394}
}