@book{6092,
	author = {Ganshof, François Louis},
	title = {El feudalismo},
	publisher = {Ediciones Ariel},
	year = {[1963]},
	series = {Colección Zetein-estudios y ensayos},
	address = {Barcelona},
	note = {Translation of : Qu'est-ce que la féodalité?}
}