Boynton, Sandra. But not the hippopotamus / by Sandra Boynton. - Newly rev. ed. - [New York] : Little Simon, 1995. - [14] p. : col. ill. ; 15 cm. - Boynton board books. . - Boynton, Sandra. Boynton board books. . On board pages. Animals pair up in these humorous rhymes. ISBN: 0671449044 Subjects--Topical Terms: Animals--Juvenile poetry.Children's poetry, American.Hippopotamus--Juvenile literature.Rhyme--Juvenile literature. LC Class. No.: PZ8.3 / B7 Bu 1995