000 00251nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aD P Jain
245 0 _aVyaavsaik Sankhyaki
260 _aNai Delhi
_bR. Chand
_c2003
650 _aMath
942 _cBK
999 _c11395
_d11395