000 00253nam a2200109Ia 4500
008 221102s9999 xx 000 0 und d
100 _aHeller, Robert
245 0 _aAchieving excellence
260 _bDK Pub
_aLondon
_c1999
300 _a72p p.
942 _cBK
999 _c1979
_d1979