TY  - RPRT
TI  - Water-resources investigations in Puerto Rico and the U.S. Virgin Islands, 1986-1988
AU  - J.W. Troester
PY  - 1990
DO  - 10.3133/ofr90122
UR  - https://pubs.usgs.gov/publication/ofr90122
ID  - ofr90122
ER  -