@misc{indiciae2009c7818a09,
  title = {Potentiometric surface of the Floridan Aquifer, Southwest Florida Water Management District, September 1980},
  author = {D. K. Yobbi and W. M. Woodham and George R. Schiner},
  year = {1980},
  doi = {10.3133/ofr801280},
  url = {https://pubs.usgs.gov/publication/ofr801280},
  note = {Source identifier: ofr801280}
}