TY  - BOOK
AU  - Guttenplan,Samuel
TI  - The languages of logic: an introduction to formal logic 
SN  - 155786988X
AV  - BC71 .G88 1997
U1  - 160 20
PY  - 1997///
CY  - Oxford, UK, Malden, Mass.
PB  - Blackwell Publishers
KW  - Logic
N1  - Includes bibliographical references and index
ER  -