2009 - Mathematical Puzzles and Other Brain Twisters (Hardcover) → Paperback, Hardcover ISBN-13: 9781104842772 ISBN-10: 1104842777 ? 2007 - Mathematical Puzzles and Other Brain Twisters (Paperback) → Hardcover ISBN-13: 9780548442227 ISBN-10: 0548442223 ? 1979 - Mathematical Puzzles and Other Brain Twisters (Hardcover) → Paperback, Hardcover ISBN-13: 9780517015445 ISBN-10: 0517015447 Genres: Children's Books, Science & Math, Humor & Entertainment ? |