000 00234nam a2200109Ia 4500
020 _a9788131785942
082 _a658.4034
100 _aTAHA HAMDY A.
245 _aOPERATION RESEARCH
260 _aNEW DELHI
_b PEARSON
_c2011
942 _cBK
999 _c6990
_d6990