00401nam a2200145Ia 450000100060000000800410000602000150004704000130006208200180007510000160009324500960010926000320020530000110023754600070024866736150514s9999    xx            000 0 und d  a0743252527  cPK-LaUMT  a 158.1bCOV-S  aCovey, Sean 4aThe 7 habits of highly effective teenagersbthe ultimate teenage success guidecCovey, Sean  aLondon,UK:bSchuster,c1998  a272 p.  aEN