@book{30631,
	author = {Wilfert, Stefan and Borrero, Lucía},
	title = {El laberinto de los acertijos /},
	publisher = {Grupo Editorial Norma},
	year = {2004},
	series = {Colección Torre de Papel Amarilla},
	address = {Bogotá, Colombia :},
	note = {Título original: Das ratsel labyrinth}
}