@misc{indiciae93accf9f1cc9,
  title = {Potentiometric surface of the upper Floridan Aquifer, west-central Florida, May 1987},
  author = {B. R. Lewelling},
  year = {1987},
  doi = {10.3133/ofr87451},
  url = {https://pubs.usgs.gov/publication/ofr87451},
  note = {Source identifier: ofr87451}
}