TY  - RPRT
TI  - Potentiometric surface map of the Floridan Aquifer in the St. Johns River Water Management District and vicinity, Florida, September, 1977
AU  - F. A. Watkins
AU  - C. P. Laughlin
AU  - E. C. Hayes
PY  - 1977
DO  - 10.3133/wri7869
UR  - https://pubs.usgs.gov/publication/wri7869
ID  - wri7869
ER  -