000			00361nam a2200133Ia 4500
008			220201s2006 xx 000 0 eng d
020			_a13: 9780393924435
082			_a520CEN
100			_aHester, Jeff.
245		0	_a21st Century Astronomy /Jeff Hester, [et.al.].
250			_a2nd ed.
260			_aNew York _bW.W. Norton & Company _c2006
942			_2ddc _cMON
999			_c19647 _d19647