@book{26992,
	author = {Labriola, Antonio.},
	title = {La concepción materialista de la historia},
	publisher = {Ed. El Caballito,},
	year = {1973},
	series = {Filosofía},
	address = {México :},
	note = {Sustituye a: La concepción materialista de historia de Gerardo Unzuela}
}