000 00294nam a2200121Ia 4500
008 220601s2015 xx 000 0 eng d
100 _aSINGH, I P
245 0 _aOPERATION RESEARCH
250 _a1ST Ed.
260 _c2015
_aNew Delhi
_bNIRMAL PUBLICATION
300 _a812
942 _2ddc
_cBTECH
_03
999 _c3400
_d3400