TY  - BOOK
TI  - Introduction to logic 
SN  - 978-1-11195377-5
AV  - BC 71 .H965 2011
U1  - M 160  
PY  - 2011///
CY  - Pasig City 
PB  - Cengage Learning Asia 
N1  - college students; 1210L-1700L
ER  -