000 00255nam a22001097a 4500
082 _a121
_bAYE.P
100 _aAyer, A J
245 _aProblem of knowledge /
_cby A J Ayer
260 _aVictoria :
_bPenguin books,
_c1956.
300 _a221p. :
942 _cBK
999 _c644296
_d644296