TY  - BOOK
AU  - Barker, Stephen Francis.
TI  - The elements of logic / 
SN  - 0072832355
AV  - BC108 .B25 2003
U1  - 160  22
PY  - 2003///
CY  - Boston
PB  - McGraw-Hill
KW  - Logic
N1  - Includes bibliographical references and index
ER  -