@book{30952,
	author = {De la Rosa, María del Jesús and Medrano, Francisca Antonia},
	title = {Matemática :},
	publisher = {Actualidad Escolar 2000,},
	year = {2010.},
	series = {Sigma},
	address = {Santo Domingo :},
	edition = {2a. ed. rev. y actualizada},
	note = {educación primaria}
}