000 00270nam a22001217a 4500
999 _c39186
_d39186
003 OSt
100 _aNarayan, Shanti
245 _aDifferential Calculus
260 _aNew Delhi
_bShyam Lal Charitable Trust.
_c1942
300 _a572p.
901 _a26122
942 _2ddc
_cBK