@misc{indiciae6e188b701680,
  title = {Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 2004},
  author = {Sandra L. Kinnaman},
  year = {2005},
  doi = {10.3133/ofr20051202},
  url = {https://pubs.usgs.gov/publication/ofr20051202},
  note = {Source identifier: ofr20051202}
}