1986 - Ufo's Past Present Future (Paperback) → Paperback ISBN-13: 9780345335142 ISBN-10: 0345335147 Genres: Religion & Spirituality, Science & Math ? 1974 - Ufo's Past Pres Future (Paperback) ISBN-13: 9780345241894 ISBN-10: 0345241894 Genres: Reference, Religion & Spirituality, Science & Math, Engineering & Transportation, Substores ? |