000 00315nam a2200133Ia 4500
008 210901s9999 xx 000 0 eng d
082 _a330 BRI
100 _aNarain, Brij
245 0 _aCurve fitting for student of Economics
260 _aDelhi
_bS,Chand
300 _a197
650 _aEconomics
942 _2ddc
_cBK
999 _c4647
_d4647