000 00250nam a2200097Ia 4500
008 190719s9999 xx 000 0 und d
100 _aMukesh Trehan
245 0 _aVigyapan avam vikra Prabhand
260 _aN.Delhi
_bV.K. Publication
_c2004
942 _cBK
999 _c12056
_d12056