@misc{indiciae9bf080a3616f,
  title = {Potentiometric surface of the upper Floridan aquifer in the St. Johns River Water Management District and vicinity, Florida, May 1986},
  author = {George R. Schiner},
  year = {1986},
  doi = {10.3133/ofr86408w},
  url = {https://pubs.usgs.gov/publication/ofr86408W},
  note = {Source identifier: ofr86408W}
}