por Partridge, Loren W [autor] | Mancinelli, Fabrizio [autor] | Colalucci, Gianluigi [autor] | Okamura, Takashi [ilustrador].
por Patridge, Loren W [autor] | Mancinelli, Fabrizio [autor] | Colalucci, Gianluigi [autor] | Okamura, Takashi, 1927- [ilustrador] | Mancinelli, Fabrizio [colaborador] | Colalucci, Gianluigi [colaborador] | Jenkens, Lawrence [traductor].