@book{10486,
	author = {Sagredo, Amarilis and Pontificia  Universidad Católica Madre y Maestra },
	title = {Nociones de lógica simbólica /},
	publisher = {UCMM,},
	year = {1986.},
	series = {Textos},
	address = {Santo Domingo :},
	edition = {5a. ed.}
}