TY  - BOOK
AU  - Ceniza, Claro R. 
TI  - Elementary logic
SN  - 971-555-007-X
U1  - Fil 160 C332 1994  
PY  - 1994///.
CY  - Manila
PB  - DLSU Press.
KW  - Logic.
N1  - Includes bibliographical references and indexes.
ER  -