TY  - BOOK
AU  - Ardales, Venancio B. 
TI  - Logic : : towards critical thinking and reasoning. 
U1  - FIL 160 Ar2l 2008 
PY  - 2008///
CY  - Manila : 
PB  - Educational Publishing House, 
KW  - Logic
N1  - Includes index; Glossary: pages 255-264; Bibliography: pages 251-253
ER  -