@misc{indiciae65206ee7c795,
  title = {Potentiometric surface and areas of artesian flow, May 1969, and change of potentiometric surface 1964 to 1969, Floridan aquifer, Southwest Florida Water Management District, Florida},
  author = {Joseph W. Stewart},
  year = {1971},
  doi = {10.3133/ha440},
  url = {https://pubs.usgs.gov/publication/ha440},
  note = {Source identifier: ha440}
}