000 00274nam a2200121Ia 4500
008 231011s9999 xx 000 0 und d
041 _aeng
100 _aEdward de Bono
245 _aSix Thinking Hats
260 _bPengnin Books. -
_c2011
300 _a177
365 _b280
999 _c895943
_d895943