TY  - BOOK
AU  - x, x
AU  - Leblanc,Hugues
TI  - Truth, syntax and modality. : x 
SN  - x      
U1  - 511.3/LET  
PY  - 1973///
CY  - Amsterdam 
PB  - North-Holland Pub. 
KW  - Logic
KW  - Mathematics
N1  - Includes
ER  -