TY  - BOOK
AU  - Basson,A.H.
AU  - O'Connor,D.J.
TI  - Introduction to symbolic logic
SN  - 0195607961
AV  - BC135 .B33 1976
U1  - 511.3  22nd 2d.
PY  - 1976///
CY  - New Delhi
PB  - Oxford University Press
KW  - Logic, Symbolic and mathematical
N1  - Includes bibliographical references ( p.163-164) and index
ER  -