@book{90593,
	author = {Osoro Igartua, Jasone},
	title = {Greta},
	publisher = {Elkar, },
	year = {[Fecha de publicación no identificada]},
	series = {Literatura},
	address = {[Madrid, España] :},
	url = {https://public.digitaliapublishing.com/a/85318}
}