TY  - RPRT
TI  - Potentiometric surfaces of the upper and lower aquifers, north coast limestone aquifer system, Puerto Rico
AU  - Robert A. Renken
AU  - Fernando Gómez-Gómez
PY  - 1994
DO  - 10.3133/ofr93499
UR  - https://pubs.usgs.gov/publication/ofr93499
ID  - ofr93499
ER  -