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020 _aNULL
035 _a24330
082 _BGUP / MAN
100 _aGupta / Manmohan
245 0 _aProblems In Operational Research
250 _a-
260 _aN. Delhi
_bS. Chand and Company Ltd.
300 _a861
500 _a692
650 _aNA
942 _cBK
999 _c24330
_d24330