000 00319nam a2200145Ia 4500
020 _a9781405215589
082 _b447
_a510
100 _a"David Kirkby"
245 0 _aMaths
260 _b,Egmont books
_aLondon
_c2005
300 _a32
944 _cBK
999 _c688570
_d688570