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020 _a9789350144343
082 _a003 VER
100 _aVerma A.P
_99336
245 0 _aOperations research
260 _aKataria publication
_bNew Delhi
_c2013
300 _a1184p.
_b495
650 _aOPERATION RESEARCH
999 _c185381
_d185381