000 00286nam a2200121Ia 4500
008 230118s9999||||xx |||||||||||||| ||und||
082 _a515.3
082 _bVAS/D
100 _aa.r
_bvasishtha
100 _bs.ksharma
245 0 _adifferential calculus
260 _bkrishna prakashan mandir
999 _c8066
_d8066