@misc{indiciae0891e738b08c,
  title = {Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, May 2008},
  author = {Sandra L. Kinnaman and Joann F. Dixon},
  year = {2008},
  doi = {10.3133/sim3056},
  url = {https://pubs.usgs.gov/publication/sim3056},
  note = {Source identifier: sim3056}
}