@misc{indiciaeec68d871b19e,
  title = {Potentiometric surface of the Floridan Aquifer in central Sumter County, Florida, September 1983},
  author = {L. A. Bradner},
  year = {1984},
  doi = {10.3133/ofr8457},
  url = {https://pubs.usgs.gov/publication/ofr8457},
  note = {Source identifier: ofr8457}
}