00310nam a2200109Ia 4500008004100000082001500041100002700056245002300083260002900106630001800135650004700153211109s9999||||xx |||||||||||||| ||und||  a160bCRE-I  aCreighton, James Edwin 0aIntroductory Logic  bUn KnownaMisplacec1917  xGeneral Stack  aPhilosophy and PsycologyvLogicxGeneralia