000 00255nam a2200109Ia 4500
008 220201s2019 xx 000 0 eng d
100 _aVERMA, A.P.
245 0 _aOPERATION MANAGEMENT
260 _aDELHI
_bS.K. KATARIA
_c2019
300 _a142
942 _2ddc
999 _c69524
_d69524