@book{12034,
	author = {Puerto, Carlos,  and Torcida, María Luisa, },
	title = {El amigo invisible / },
	publisher = {SM, },
	year = {1993.},
	series = {El barco de vapor. Serie naranja },
	address = {Madrid : },
	edition = {2a ed. },
	note = {"A partir de 9 años"}
}