TY  - BOOK
AU  - Barker,Stephen Francis
TI  - The elements of logic
SN  - 0070037302 :
AV  - BC108 .B25 1989
U1  - 160 19
PY  - 1989///
CY  - New York
PB  - McGraw-Hill
KW  - Logic
N1  - Includes index; Bibliography: p. 268-283
UR  - http://www.loc.gov/catdir/description/mh022/88020930.html
UR  - http://www.loc.gov/catdir/toc/mh021/88020930.html
ER  -