TY  - BOOK
AU  - Walton, Douglas N
TI  - Informal logic : a pragmatic approach
SN  - 9780521886178
SN  - 200704237
U1  - 168 WAL 
PY  - 2008///
CY  - Cambridge
PB  - Cambridge University Press
KW  - Logic
KW  - Reasoning
N1  - Includes bibliographical references and index
ER  -