00424nam a2200133   4500245003400000100001500034250001200049260004400061300001600105490003200121082001700153952010500170999001500275  aManual of logiccby J. Welton  aWelton, J.  a2nd ed.  aLondonbUniversity Tutorial Pressc1901  a2v.;  17cm.  aUniversity Tutorial series   a160.202bWEL  001040708GEYAaNEHUbNEHUd2011-11-24l0o160.202 WELpB1605r2011-11-24 00:00:00w2011-11-24yBK  c4302d4302