@book{132037,
	author = {Heers, Jacques.},
	title = {Occidente durante los siglos XIV y XV},
	publisher = {Editorial Labor},
	year = {1976.},
	series = {Nueva Clio : la historia y sus problemas ; v 23.},
	address = {Barcelona},
	edition = {2.ed.},
	note = {Translation of L'Occident aux XIVe et XVe siècles: aspects économiques et sociaux.}
}