@misc{indiciae895f2531a45c,
  title = {Potentiometric surface of the Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, September 1981},
  author = {George R. Schiner and E. C. Hayes},
  year = {1981},
  doi = {10.3133/ofr82118},
  url = {https://pubs.usgs.gov/publication/ofr82118},
  note = {Source identifier: ofr82118}
}