@book{
title = {Charlie Bone e la sfera del tempo},
author = {Nimmo, Jenny},
editor = {Bruno, Iacopo},
editor = {Mambrini, Simona},
editor = {Età: dai 9 ai 14 anni },
year = {2005},
address = {Casale Monferrato },
publisher = {Piemme junior},
}