000 00268nam a2200109Ia 4500
008 230818s9999 xx 000 0 und d
082 _a515.33
_bNAR/D
100 _aNarayan, Shanti
245 0 _aDifferential Calculus
260 _bNew Delhi,S. Chand Co.
_c2015
942 _cBK
999 _c277
_d277