@book{22528,
	author = {Merton, Thomas. and Tur, Aquilino},
	title = {La montaña de los siete círculos /},
	publisher = {Porrúa },
	year = {1999.},
	series = {Sepan cuantos ; },
	address = {México  },
	note = {Incluye índice.}
}