@misc{indiciaef28a7cf24973,
  title = {Potentiometric surface of the upper Floridan Aquifer in the St. Johns River Water Management District and vicinity, Florida, May 1985},
  author = {George R. Schiner and Eugene C. Hayes},
  year = {1985},
  doi = {10.3133/ofr85491},
  url = {https://pubs.usgs.gov/publication/ofr85491},
  note = {Source identifier: ofr85491}
}