@misc{indiciae4f8e81c27fed,
  title = {Potentiometric surface of Floridan aquifer May 1975, and change of potentiometric surface 1969 to 1975, Southwest Florida Water Management District and adjacent areas},
  author = {L. R. Mills and C. P. Laughlin},
  year = {1976},
  doi = {10.3133/wri7680},
  url = {https://pubs.usgs.gov/publication/wri7680},
  note = {Source identifier: wri7680}
}