000			00554nam a22001697a 4500
999			_c12134 _d12134
005			20190701093657.0
008			171030b xxu||||| |||| 00| 0 eng d
020			_a9780393936315
050			_aQB43.3 _bUND 2015
245			_aUnderstanding our universe/ _cStacy Palen; Laura Kay; Brad Smith; George Blumenthal.
250			_aSecond edition.
260			_aNew York : _bW.W. Norton & Company, Inc., _c2015.
300			_axxix, 485 p.: _bcolor illustrations; _c 27 cm.
500			_aincludes index
650			_a Astronomy _vTextbooks.
942			_2lcc _cBK