000 00244nam a2200109Ia 4500
008 170912s9999 xx 000 0 und d
082 _a001/T
245 0 _aKNOWLEDGE BOOK
260 _bNATIONAL GEOGRAPHIC
_c2010
300 _a512
942 _cRE
999 _c49776
_d49776