000 00300nam a2200133Ia 4500
008 221030s9999 xx 000 0 und d
041 _aEnglish
082 _a105.23
100 _aD Verma
245 0 _aElements of System Analysis & Design
_cby D Verma
260 _c0
650 _aMc
942 _cBK
999 _c11984
_d11984