000 00246nam a2200109Ia 4500
008 190516s9999 xx 000 0 und d
100 _aNARAYAN SHANTI
245 0 _aDIFFERENTIAL CALCULAS
260 _c2001
_bS.CHAND
300 _a378
942 _cBK
999 _c18787
_d18787