000 00281nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aS.P. Nigam & Others
245 2 _aA Text Book of Differential Calculus
260 _aAgra
_bRam prasad & sons
_c1972
650 _aMath
942 _cBK
999 _c2743
_d2743