@book{7113,
	author = {Pérez Tamayo, Ruy,  and Alvarez Baldit, Paola, },
	title = {De muchos libros /},
	publisher = {El Colegio Nacional : Fondo de Cultura Económica, },
	year = {2011},
	series = {Colección Tezontle},
	address = {México, D.F. :},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/7796.pdf}
}