1980 - Challenging Mathematical Teasers (Paperback) ISBN-13: 9780486238524 ISBN-10: 0486238520 Genres: Science & Math, Humor & Entertainment 2 1975 - Mathematical Diversions (Paperback) ISBN-13: 9780486231105 ISBN-10: 0486231100 Genres: Science & Math, Humor & Entertainment ? 1972 - Figures for Fun [Aldine Paperbacks] (Paperback) ISBN-13: 9780460020954 ISBN-10: 0460020951 Genre: Science & Math ? |