00563nam a22001817a 4500999001700000020001800017082001200035100002400047245003200071260004900103300002300152500004500175700001500220700001600235700002300251942000700274952010000281  c20653d20653  a9780393912104  a520 PAL  aPALEN, Stacy et al.  aUnderstanding Our Universe/  aNew York;bW.W. Norton & Company Inc,c2012.  axxix, 485 p.bill.  aINCLUDES:  Appendix, Glossary and Index.  aKAY, Laurn  aSMITH, Brad  aBLUMENTHAL, George  cBK  001040708NFaTLLbTLLcLSd2026-06-01eSUZAo520 PALpl000017418r2026-06-01w2026-06-01yBK