000 00296nam a2200145Ia 4500
100 _aGupta/P.K/ Hira/D.S
942 _cBK
366 _f20
245 _aOperation Research
260 _bS.Chand and Co.
_c1976
082 _a658.4034
_bGUP
300 _a1395
546 _aENGLISH
999 _c35522
_d35522