@book {de_azkue_euskalerriaren_1935,
	title = {Euskalerriaren yakintza = (Literatura popular del Pa{\'\i}s Vasco)},
	year = {1935},
	publisher = {Espasa Calpe},
	organization = {Espasa Calpe},
	address = {Madrid},
	author = {de Azkue, Resurrecci{\'o}n Mar{\'\i}a de}
}
