@misc{indiciae648f90592134, title = {Potentiometric surface of the Floridan Aquifer in the St. Johns River Water Management District and vicinity, Florida, May 1982}, author = {George R. Schiner and Eugene C. Hayes}, year = {1982}, doi = {10.3133/ofr82915}, url = {https://pubs.usgs.gov/publication/ofr82915}, note = {Source identifier: ofr82915} }