000 00277nam a2200097Ia 4500
008 160523s9999 xx 000 0 und d
100 _aSimons, G. L.
245 _aIntroducing systems analysis and design vol.1
260 _aNew Delhi
_bGalgotia Publications
_c1982
300 _a166p.
999 _c24582
_d24582