000 00262nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aArun Kumar Jain
245 0 _aVayavasahik Sayakhayik
260 _aN.Delhi
_bDhanpat Rai
_c2003
650 _aMath
942 _cBK
999 _c11962
_d11962