@book{8031,
	author = {Pérez Galdós, Benito, and Gullón, Ricardo,},
	title = {Tristana /},
	publisher = {Alianza,},
	year = {1990.},
	series = {Biblioteca Pérez Galdós.},
	address = {Madrid :},
	note = {El primer ejemplar es la tercera reimpresión del 1999.}
}