000 00308nam a2200145Ia 4500
008 220421s9999||||xx |||||||||||||| ||und||
020 _c799
040 _aET
100 _aHILLER FS
245 0 _aOPERATION RESEARCH
260 _bMC GRAW HILL
_aCHENNAI
300 _a1183
500 _a54062
942 _cBK
999 _c60075
_d60075