000
00247nam a2200121Ia 4500
100
_a
Ayer, A. J.
942
_c
BK
654
_a
245
_a
Problem of knowledge
260
_a
England
_b
Penguin Books
_c
1956
082
_a
104
300
_b
Pb
_a
224
999
_c
401706
_d
401706
041
_a
eng