000 00253nam a2200109Ia 4500
082 _a519.8
_bGUP
100 _aGupta, Premkumar
245 _aProblems in Operation Research
260 _b S.Chand & Co,
_aNew Delhi
_c1991
300 _a1078p.
942 _cBK
999 _c19351
_d19351