000 00364nam a2200133Ia 4500
008 211214s9999 xx 000 0 und d
040 _cJayakar Knowledge Resource Centre
100 _aChurchman, C W
245 0 _aElements of logic and formal scince
260 _bJ B LIPPINCOTT CO
_aCHICAGO
_c1951
300 _aVII,337 P p.
653 _aPHILOSOPHY
942 _c1
999 _c26085
_d26085