000 00231nam a2200109Ia 4500
082 _a003 GUP
100 _aGUPTA, PREM KUMAR
245 _aOPERATIONS RESEARCH
260 _bS.CHAND AND CO.
_c2004
300 _a1055
942 _2ddc
_cB
999 _c59044
_d59044