2007 - Young Christopher Columbus Discoverer of New Worlds (Paperback) → Paperback, Hardcover ISBN-13: 9780545029469 ISBN-10: 0545029465 Genre: Children's Books ? 1996 - Young Christopher Columbus Discoverer of New Worlds [First-Start Biographies] (Paperback) ISBN-13: 9780816725274 ISBN-10: 0816725276 Genres: Biographies & Memoirs, Children's Books 4 |