00266nam a2200109Ia 4500008004100000082001900041100001900060245002400079260003700103300000800140650000800148191201s2007    xx            000 0 und d  a658.80285bKAE  aKalakota, Ravi 0aElectronic Commerce  aN.DelhibPearson Educationc2007  a431  aMBA