TY  - BOOK
AU  - Gualdo, Rosendo S.,
TI  - Logic: the basics of correct reasoning
SN  - 9718210040
U1  - 160 
PY  - 2000///
CY  - Valenzuela City
PB  - Mutya Publishing House
KW  - Logic
KW  - Reasoning
N1  - Includes bibliographic references (page 147)
ER  -