000 00302nam a2200121Ia 4500
008 120229s9999 xx 000 0 und d
020 _a0393104400
082 _a520 TWE
100 _aHester, Jeff
245 _a21st century astronomy
260 _bW.W.Norton
_aNew York
_c2002
300 _e1 CD
999 _c123738
_d123738