@book{111545,
	author = {Quiñones Márquez, Ferdinand. and Peña-Cruz, Gilberto.},
	title = {Water resources investigations in Puerto Rico and the U.S. Virgin Islands},
	publisher = {U.S. Geological Survey. Water Resources Division},
	year = {19-},
	series = {Open-File Report},
	address = {San Juan, P. R.}
}