@book{192158,
	author = {Conde-Costas, Carlos, E. and Rodríguez-Rodríguez, Gilberto A. and Puerto Rico.},
	title = {Reconnaissance of ground-water quality in the Manatí quadrangle, Puerto Rico, August-November 1992},
	publisher = {U.S. Geological Survey},
	year = {116},
	series = {U.S. Geological Survey open-file report},
	address = {San Juan, P.R.}
}