TY  - BOOK
AU  - JACKSON,FRANK
TI  - CONDITIONALS / 
U1  - 160 
PY  - 1991///
CY  - [S.N] : 
PB  - OXFORD UNIVERSITY PRESS ، 
KW  - PHILOSOPHY
KW  - LOGIC
KW  - CONDITIONALS LOGIC
KW  - LANGUAGE - PHILOSOPHY
ER  -