@misc{indiciae7f0f44f7fe07, title = {Potentiometric surface of the upper Floridan Aquifer in the St. Johns River Water Management District and vicinity, Florida, September 1997}, author = {M. L. Merritt}, year = {1998}, doi = {10.3133/ofr98183}, url = {https://pubs.usgs.gov/publication/ofr98183}, note = {Source identifier: ofr98183} }