000 00305nam a2200121Ia 4500
008 220201s2016 xx 000 0 eng d
082 _a513
_bCHA
100 _aChakraborty (S.K) & etc .
245 0 _aDISCReference ETE MATHEMATICS
260 _bExcel Books
_aDelhi
_c2016
300 _a567p.
942 _2ddc
_03
999 _c2215
_d2215