TY  - BOOK
AU  - Elster Jon
TI  - Logic and society :  Contradictions and possible worlds
U1  - #:f, L84 
PY  - 1978///
CY  - Chichester
PB  - John Wiley      
KW  - SOCIAL SCIENCES
N1  - Appendix p150--162 (1--2)
ER  -