1994 - Dell Book of Classic Logic Pro [nxtrep - Dell Book of Classic Logic Problems] (Paperback) ISBN-13: 9780440506218 ISBN-10: 0440506212 Genres: Computers & Technology, Humor & Entertainment ? 1992 - The Dell Book of Logic Problems Number 5 [Dell Book of Logic Problems] (Paperback) ISBN-13: 9780440502982 ISBN-10: 0440502985 Genre: Humor & Entertainment ? 1989 - Dell Book of Logic Problems 4 [Dell Book of Logic Problems] (Paperback) ISBN-13: 9780440501817 ISBN-10: 0440501814 Genres: Science & Math, Humor & Entertainment 1 1988 - Dell Book of Logic Problemsp461014/10 [Dell Book of Logic Problems] (Paperback) ISBN-13: 9780440500681 ISBN-10: 0440500680 Genres: Science & Math, Humor & Entertainment ? 1986 - Dell Book of Logic Problems Number 2 [Dell Book of Logic Problems] (Paperback) ISBN-13: 9780440518754 ISBN-10: 044051875X Genre: Humor & Entertainment ? |