000 00422pam a2200169a 44500
005 20170221121044.0
008 170221b xxu||||| |||| 00| 0 eng d
040 _cIITK
041 _aeng
082 _a164
_bK886E
100 _aKretzmann, Norman
245 1 _aElements of formal logic
260 _c1965
_aNew York
_bBobbs-Merrill
300 _axi, 243p
650 _aLogic, Symbolic and mathematics
942 _cBK
999 _c448601
_d448601