00570nam a2200181 4500 1/14054 990113s1979 enk 001 00eng 0333068386 14517 DLC GR-PeUP 001 AY. Ayer, Alfred Jules, 1910- The Foundations of empirical knowledge/ Alfred J. Ayer. London: The Macmillan Press, 1979. 276p.; 22cm. Knowledge. INST UNIPILB MAIN 20040709 001 AY. 00110334 00110334 LOAN 0 1 /webopac/covers/01/14517_0333068386.jpg