@book{7254,
	author = {Unamuno, Miguel de,},
	title = {Contra esto y aquello /},
	publisher = {Espasa-Calpe,},
	year = {1969.},
	series = {Austral},
	address = {Madrid :},
	edition = {6a ed.},
	note = {Incluye índice de autores.}
}