000 00246nam a2200109Ia 4500
008 190516s9999 xx 000 0 und d
100 _aGUPTA C B
245 0 _aBUSINESS ENVIRONMENT
260 _cNULL
_bSULTAN CHAND
300 _aNULL
942 _cBK
999 _c18289
_d18289