000 00259nam a2200121Ia 4500
020 _a8121909686
082 _a658.54 GUP
100 _aGUPTA, P.K.
245 _aPROBLEMS IN OPERATIONS RESEARCH
260 _bS CHAND
_c2013
300 _a1202
942 _2ddc
_cB
999 _c68071
_d68071