@book{33104,
	author = {Ullrich, Hortense and Sèonnichsen, Imke, ilustrador il.},
	title = {La prueba de valor de Lorenzo / },
	publisher = {Norma, },
	year = {2003},
	series = {Torre de papel. Torre naranja},
	address = {Bogotá : },
	note = {Datos de la autora en la pasta.}
}