000 00343nam a2200157Ia 4500
008 230913s9999 xx 000 0 und d
082 _a515.33 vas
100 _aVasishtha, A.R
245 0 _aDifferential Calculus
250 _a18
260 _aMEERUT
260 _bKRISHANA
260 _c2005
300 _a268
650 _aMathematics
999 _c139959
_d139959