000 00250nam a2200109Ia 4500
008 211126s9999 xx 000 0 und d
082 _a315.335
100 _aSHANTI NARAYANA
245 0 _aDIFFERENTIAL CALCULAS
260 _bS CHAND
942 _cBTECH
999 _c168585
_d168585