000 00264nam a22001217a 4500
999 _c34648
_d34648
020 _a9788121904711
082 _a515.3/NAR
100 _aNarayan Shanti
245 _aDifferential Calculus
260 _aNew Delhi
_bS.Chand Co.
_c2020
300 _a572
942 _cBK