@misc{indiciae4510487e35b7,
  title = {Potentiometric surface of the upper Floridan aquifer in central Sumter County, Florida, September 1984},
  author = {L. A. Bradner},
  year = {1984},
  doi = {10.3133/ofr84813},
  url = {https://pubs.usgs.gov/publication/ofr84813},
  note = {Source identifier: ofr84813}
}