TY  - BOOK
AU  - Robert A.Renken ; W.C.Ward ; I.P.Gill ; [Et al]
TI  - Geology and Hydrogeology of the Caribbean Islands Aquifer System of the Commonwealth of Puerto Rico and the U.S. Virgin Islands
PY  - 2002///
CY  - Virginia
PB  - U.S. Geological Survey
ER  -