2009 - The Hiccupotamus (Hardcover) → Paperback, Hardcover ISBN-13: 9780761456223 ISBN-10: 0761456228 Genre: Children's Books 2 2006 - The Hiccupotamus (Paperback) → Paperback, Hardcover ISBN-13: 9780439897815 ISBN-10: 0439897815 Genre: Children's Books 3 |