00401nam a22001217a 4500008004100000020001800041082000800059245010800067260003900175300001800214650002900232700001800261160510b        xxu||||| |||| 00| 0 eng d  a9780435077662  a51300aHeinemann active maths Northern Ireland pupil book 3 :balgebraic thinking/cby Peter Gorrie ... et al.  aEssex :bPearson Education,c2012.  a47 p. :bill.  aMathematicsbArithmetic 1 aGorrie, Peter