TY  - BOOK
AU  - Conde-Costas,Carlos
AU  - Gomez-Gomez,Fernando
ED  - Junta de Calidad Ambiental de Puerto Rico.
ED  - Geological Survey (U.S.)  
TI  - Assessment of nitrate contamination of the upper aquifer in the Manatí-Vega Baja area, Puerto Rico
T2  - Water resources investigations report
AV  - QE75 .W3 99-4040
PY  - 1999///
CY  - San Juan, P.R., Denver, CO
PB  - U.S. Dept. of the Interior, U.S. Geological Survey, Branch of Information Services [distributor]
KW  - Groundwater
KW  - Pollution
KW  - Puerto Rico
KW  - Manatí Region
KW  - Local
KW  - Nitrates
KW  - Environmental aspects
KW  - Vega Baja Region
N1  - Shipping list no.: 99-0235-P; Includes bibliographical references (p. 36-38)
ER  -