TY  - RPRT
TI  - Ground-water resources of alluvial valleys in northeastern Puerto Rico—Rio Espiritu Santo to Rio Demajagua area
AU  - Francisco Perez-Blair
PY  - 1997
DO  - 10.3133/wri964201
UR  - https://pubs.usgs.gov/publication/wri964201
ID  - wri964201
ER  -