1998 - Know Your Child's Iq (Paperback) → Paperback ISBN-13: 9780140274646 ISBN-10: 0140274642 Genre: Health, Fitness & Dieting 2 1962 - Know Your Own Iq (Paperback) → Paperback ISBN-13: 9780140135183 ISBN-10: 0140135189 Genres: Health, Fitness & Dieting, Reference, Science & Math, Engineering & Transportation ? |