TY  - BOOK
AU  - Ayer,Alfred Jules
AU  - ctb
TI  - Language, truth and logic / 
U1  - 101 
PY  - 1990///
CY  - London
PB  - Penguin Books Ltd , 
KW  - Knowledge, Theory of
KW  - languages Philosophy
KW  - Semantics (Philosophy)
KW  - Empiricism
ER  -