@book{217260,
	author = {Villegas, Víctor},
	title = {Acertijos o adivinanzas},
	publisher = {San Pablo},
	year = {1994.},
	series = {Colección Dinámica grupal.},
	address = {Bogotá, Colombia},
	edition = {6. ed.},
	note = {On cover : 500 acertijos o adivinanzas}
}