@book {2938,
	title = {Conceptos},
	series = {Miradas sobre la {\'e}poca },
	number = {180},
	year = {1997},
	publisher = {Arteleku Cuadernos },
	organization = {Arteleku Cuadernos },
	edition = {11},
	address = {Diputaci{\'o}n Foral de Guipuzkoa, Spain },
	isbn = {8479072121}
}
