@book{64714,
	author = {Duby, Georges},
	title = {Economía rural y vida campesina en el occidente medieval.},
	publisher = {Ediciones Península},
	year = {1968.},
	address = {Barcelona},
	note = {"Translation from the French L'économie rurale et la vie des campagnes dans l'occident médiéval."}
}