000 00269nam a2200121Ia 4500
008 210212s9999 xx 000 0 und d
040 _crty
100 _aDhingra,Ishwar
245 0 _aVyashtigat aarthik siddhant
260 _aNew Delhi
300 _a2008
942 _cBB
999 _c15101
_d15101