@misc{indiciae5793301862d3,
  title = {Potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 1992},
  author = {L. A. Bradner and L. C. Murray and G. G. Phelps and R. M. Spechler},
  year = {1992},
  doi = {10.3133/ofr92466},
  url = {https://pubs.usgs.gov/publication/ofr92466},
  note = {Source identifier: ofr92466}
}