000 00273nam a2200109Ia 4500
008 220201s1962 xx 000 0 eng d
100 _aArjan Singh
245 0 _aDifferentail calcus made clear
260 _bNew Delhi : Satya Prakashan
_c1962
300 _a165
942 _2ddc
999 _c71951
_d71951