000			00393nam a2200133Ia 4500
008			211109s9999||||xx |||||||||||||| ||und||
082			_a164 _bCHI-I
100			_aChistin [robert R],
245		0	_aIntroduction To Logic And Sets
260			_bNATIONAL BOOKSTALL _aKottayam _c1965
630			_xGeneral Stack
650			_aLogic, Symbolic and mathematical _vSet theory _xGeneralia
942			_cBOOK
999			_c28333 _d28333