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040 _aMAIN
041 _aEnglish
082 _a519.92
100 _aGupta, R. K.
245 0 _aOperations research
_bOperations research, New Delhi : Krishna Prakashan Mandir, 2004
_cR. K. Gupta
260 _c2004
_bKrishna Prakashan Mandir
_aNew Delhi
942 _cBK
999 _c36455
_d36455