@book{4547,
	author = {Silver, Debbie and Vallely, Bernadette},
	title = {Lo que tú puedes hacer para salvar la tierra },
	publisher = {Lóguez Lector Joven},
	year = {2002},
	series = {Lector jóven},
	address = {Madrid },
	edition = {3a. edición }
}