000 00295nam a2200157Ia 4500
020 _aNULL
082 _a517.2
100 _aNarayan, Shanti
245 0 _aDifferential Calculus
250 _a-
260 _aDelhi
_b-
300 _a400
500 _a582
650 _aCalculus
942 _cBK
999 _c24245
_d24245