TY  - RPRT
TI  - Compilation of ground-water level measurements, obtained by the United States Geological Survey in Puerto Rico, 1958-1985
AU  - Sigfredo Torres-Gonzalez
PY  - 1991
DO  - 10.3133/ofr88701
UR  - https://pubs.usgs.gov/publication/ofr88701
ID  - ofr88701
ER  -