000 00247nam a2200109Ia 4500
008 170620s9999 xx 000 0 und d
100 _aGUPTA- R.K
245 0 _aOPERATION RESEARCH
260 _bKRISHNA PRAKASHAN MEERUT
260 _c2013
300 _a688
546 _aENGLISH
999 _c29962
_d29962