1992 - Check Your Own Iq (Paperback) → Hardcover ISBN-13: 9780140135060 ISBN-10: 0140135065 Genres: Health, Fitness & Dieting, Nonfiction ? 1981 - The Intelligence Controversy (Hardcover) ISBN-13: 9780471088844 ISBN-10: 0471088846 Genres: Health, Fitness & Dieting, Science & Math, Engineering & Transportation ? 1980 - Check Your Own Iq (Hardcover) → Paperback ISBN-13: 9780517279267 ISBN-10: 0517279266 Genre: Health, Fitness & Dieting 1 |