TY  - RPRT
TI  - Potentiometric surface of the Upper Floridan aquifer in the St. Johns River Water Management District and vicinity, September 1991
AU  - D. M. Sumner
AU  - G. G. Phelps
AU  - R. M. Spechler
AU  - L. A. Bradner
AU  - L. C. Murray
PY  - 1992
DO  - 10.3133/ofr9268
UR  - https://pubs.usgs.gov/publication/ofr9268
ID  - ofr9268
ER  -