TY  - BOOK
AU  - Copi, I. M.
TI  - Symbolic Logic
SN  - 9788120309708
AV  - BC 135 .C58 2006 
PY  - 2006///
CY  - New Delhi
PB  - Prentice-Hall
KW  -  Logic, Symbolic and mathematical
N1  - Includes bibliographical references and index
ER  -