1991 - Power House (Hardcover) → Paperback ISBN-13: 9780001848450 ISBN-10: 0001848453 Genre: Science & Math ? 1991 - Power House (Paperback) → Hardcover ISBN-13: 9780001964006 ISBN-10: 0001964003 Genre: Science & Math ? 1988 - Science Magic (Paperback) → Hardcover ISBN-13: 9780137950225 ISBN-10: 0137950225 Genre: Children's Books ? 1986 - Science Magic (Hardcover) → Paperback ISBN-13: 9780671663681 ISBN-10: 0671663682 Genre: Children's Books ? Power Magic Science Activities for Children (Paperback) ISBN-13: 9780671741303 ISBN-10: 0671741306 Genre: Children's Books ? |