Payne, Tony The Hippo-not-amus / Tony Payne. - New York : Scholastic, 2003. - [ ] p. : col. ill.: 27 cm. English ISBN: 0-439-67857-9 Subjects--Topical Terms: Identity--FICTIONHippopotamus--FICTIONAnimals--FICTION LC Class. No.: P29h 2005