00406cam a22001451 4500 38040 38040 730109s1956 enk 000 0 eng 9780140135473 Ayer, A. J. The problem of knowledge. A. J. Ayer. London, Macmillan; New York, St. Martin's Press, 1956. x, 258 p. Knowledge, Theory of. BK BD161 .A9 0 0 lcc 0 0 NFIC MAIN MAIN OOLEGF 2024-04-02 GFT 0 BD 161 .A93 1956 00048483 2024-04-02 00:00:00 1 BK