TY  - RPRT
TI  - Potentiometric surface of the Upper Floridan aquifer in the St.Johns River Water Management District and vicinity, Florida May 1993
AU  - Keith J. Halford
AU  - L. C. Murray
AU  - G. G. Phelps
AU  - R. M. Spechler
AU  - L. A. Bradner
PY  - 1993
DO  - 10.3133/ofr93451
UR  - https://pubs.usgs.gov/publication/ofr93451
ID  - ofr93451
ER  -