TY  - BOOK
AU  - Ayer,A.J.
TI  - The problem of knowledge
T2  - Pelican books
U1  - 121 
PY  - 1956///. [Reprinted 1958-1980]
CY  - Harmondsworth, Middlesex
PB  - Penguin
KW  - Knowledge, Theory of
N1  - "A volume of the Pelican philosophy series" -- cover; Includes bibliographical references and index
ER  -