@misc{indiciae129c10bd24ac,
  title = {Potentiometric surface of the Floridan Aquifer in central Sumter County, Florida, May 1983},
  author = {L. A. Bradner},
  year = {1983},
  doi = {10.3133/ofr83676},
  url = {https://pubs.usgs.gov/publication/ofr83676},
  note = {Source identifier: ofr83676}
}