000 00421pam a2200157a 44500
008 160408b2008 xxu||||| |||| 00| 0 eng d
020 _a9780521713801
082 _a168
_bW173i2
100 _aWalton, Douglas
245 _aInformal logic
_ba pragmatic approach
_cDouglas Walton
250 _a2nd
260 _aCambridge
_bCambridge Univ. Press
_c2008
300 _axvi, 347p
650 _aLogic
997 _aA164658 C
999 _c363494
_d363494