000 00273nam a2200121Ia 4500
008 170912s9999 xx 000 0 und d
082 _a AYE/T
100 _aAYER A J
245 4 _aTHE PROBLEM OF KNOWLEDGE
260 _bPENGUIN BOOKS
_c1980
300 _a223
942 _cTB
999 _c30347
_d30347