TY  - BOOK
AU  - Sengupta,Pradip Kumar
TI  - Demonstration and logical truth
AV  - BC173 .S4
U1  - 160 
PY  - 1968///]
CY  - Calcutta
PB  - Academic Publishers
KW  - Evidence
KW  - Logic
N1  - Bibliographical footnotes
ER  -