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By Moure Trenor, Gonzalo. Madrid :Santillana 2000 . 197 p , Premio Xaén de narrativa infantil e xuvenil 1999 ;22cm. 9788482243337
By Lindo, Elvira. Madrid :Alfaguara 2001 . 156 p , Infantil: 8-12 anos ;20cm. 8482244582
By Burnie, David. Madrid :Altea [etc.] 1989 . 63 p. , Indices ;29cm. 8437237300