Valentina RinaldiBooksWillie Goes for a SwimArthur Ramsbottom and the Dinkle DonkleAdventures of Willie the HippoWillie l'ippopotamo e i suoi amici!Willie the Hippo's a to Z of AnimalsWillie Saves the WeddingWillie's Birthday PartyLucy, the Inquisitive CalfWillie and the Lion CubsAuthor data: Open Library
