000 00345nam a2200145Ia 4500
008 220623s9999 xx 000 0 und d
041 _aeng
082 _aD 1139
100 _aPrasad, Gorakh
245 _aText-book on differential calculus
260 _aAllahabad
_bPOthishala
_c1914
300 _a367 p.
650 _aEconomics
999 _c14422
_d14422
942 _CGB