TY  - RPRT
TI  - Potentiometric surface of the upper Floridan Aquifer in the St. Johns River Water Management District and vicinity, Florida, May 1999
AU  - L. A. Bradner
AU  - Leel Knowles
PY  - 1999
DO  - 10.3133/ofr99608
UR  - https://pubs.usgs.gov/publication/ofr99608
ID  - ofr99608
ER  -