000 00301nam a2200121Ia 4500
008 190711s9999 xx 000 0 und d
082 _a620.7 N147
100 _aNAGRATH,J.J
245 0 _aSYSTEMS MODELLING AND ANALYSIS
260 _aNEW DELHI
_bMcGraw-Hill
_c1982
300 _a23X16
942 _cBK
_2DDC
999 _c20818
_d20818