00312nam a2200109Ia 4500008004100000040002500041082001200066100002300078245006500101260002500166300001100191230627s9999    xx            000 0 und d  aNORSU-SiacNORSU-Sia  a302 G46  aGladwell, Malcolm  0aTipping point : how little things can make a big difference   bBack Bay Booksc2002  a301 p.