@book {marin_royo_etnografihistorica_1977,
	title = {Etnograf{\'\i}a hist{\'o}rica tudelana (costumbres)},
	year = {1977},
	publisher = {El autor},
	organization = {El autor},
	address = {Tudela},
	isbn = {84-400-4137-3},
	author = {Mar{\'\i}n Royo, Luis Mar{\'\i}a}
}
