TY  - BOOK
AU  -  Copi,Irving M
TI  - Symbolic logic
U1  - 511.3 23
PY  - 1967/// [Printing 1968]
CY  - New York
PB  -  Macmillan, 
KW  - Logic, Modern
KW  - Logic, Symbolic and mathematical
N1  - Includes bibliographical references and index
ER  -