@book{9515,
	author = {Rosa, María del Jesús de la  and Rosa, Dolores de la },
	title = {Matemática 7 :},
	publisher = {Actualidad Escolar 2000,},
	year = {2014.},
	series = {Sigma},
	address = {Santo Domingo :},
	edition = {3a. ed. rev. y actualizada. }
}