@book{8,
	author = {Roldán, Gustavo and Fortin, Raúl},
	title = {El carnaval de los sapos},
	publisher = {Sudamericana},
	year = {1998},
	series = {Pan Flauta},
	address = {Buenos Aires},
	edition = {2ª ed.},
	note = {Para niños a partir de los 9 años}
}