@misc{indiciae5b733ad0621e,
  title = {Potentiometric surface of the Upper Floridan Aquifer, west-central Florida, September 1987},
  author = {B. R. Lewelling},
  year = {1987},
  doi = {10.3133/ofr87683},
  url = {https://pubs.usgs.gov/publication/ofr87683},
  note = {Source identifier: ofr87683}
}