@book{257654,
	author = {Geological Survey (U.S.)  },
	title = {Cretaceous and Lower Tertiary stratigraphy of the Naranjito and Aguas Buenas quadrangles and adjacent areas, Puerto Rico /},
	publisher = {U.S. Govt. Print. Off.,},
	year = {1968},
	address = {Washington :},
	note = {One folded map in pocket, Plate 1: Generalized geologic map and schematic diagram of the Cretaceous and Lower Tertiary formations in the Naranjito and Aguas Buenas quadrangles and adjacent areas, Puerto Rico, 1957-63}
}