@misc{indiciaefa1972f12b16,
  title = {Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 1985},
  author = {George R. Schiner and Eugene C. Hayes},
  year = {1985},
  doi = {10.3133/ofr85644},
  url = {https://pubs.usgs.gov/publication/ofr85644},
  note = {Source identifier: ofr85644}
}