00906nam--2200325---450-99000332101020331620090928123510.0000332101USA01000332101(ALEPH)000332101USA0100033210120090928d1979----km-y0itay50------baengUSa---||||001yyRecreations in logicD.G. WellsNew YorkDover publications1979VI, 55 p.ill.22 cmDover books on mathematical and word recreationsGiochi matematici793.74WELLS,D.G.605999ITsalbcISBD990003321010203316793.74 WEL7824/CBS793.7400328502BKSCIRSIAV79020090928USA011235Recreations in logic1121358UNISA