TY  - BOOK
AU  - Ayer, A. J.
TI  - The problem of knowledge
SN  - SC&SSBK58
U1  - 121 
PY  - 1956/// [reprinted 1972]
CY  - England
PB  - Penguin Books
KW  - Knowledge, theory of
N1  - Includes index
ER  -