TY  - BOOK
AU  - GHOSH,B N
AU  - GHOSH,B N
TI  - A textbook of Deductive logic
SN  - 0-7069-2483-5
AV  - 162 GHO 
U1  - 162 GHO 
PY  - 1984///
CY  - NEWDELHI
PB  - Vikas
N1  - includes: bibliography
ER  -