@misc{indiciae9526cf5cc4ed,
  title = {Potentiometric surface map of the Floridan Aquifer in central Sumter County, Florida, September 1980},
  author = {A. S. Navoy},
  year = {1981},
  doi = {10.3133/ofr81338},
  url = {https://pubs.usgs.gov/publication/ofr81338},
  note = {Source identifier: ofr81338}
}