00502nam a22001697a 4500008004100000020001800041082000800059100002700067245004400094250001600138260003500154300003000189440003600219500004800255942001200303999001700315180913b        xxu||||| |||| 00| 0 eng d  a9781444126037  a500  aRiley, Peter D.917718  aCheckpoint Science 1cby Peter D. Riley  aNew edition  aLondonbHodder Educationc2011  avi, 250 p.bill. fig.tab.  aCambridge Checkpoint Science  1  aincludes bibliographical references & index  2ddccBK  c27341d27341