000 00306nam a2200121Ia 4500
100 _aNational computing center
654 _aComputer Science
942 _cBK
245 _aIntroducing systems analysis and design vol. 1
260 _aGalgotia Publ, New Delhi
_c1982
082 _a001.61 NCC
300 _a166
999 _c19207
_d19207