000 00347nam a2200145Ia 4500
020 _a9780721407050
082 _b2654
_a510
100 _a"Murray, W","Roger"
245 0 _aFun with Subtraction
260 _b,Ladybird Books Ltd
_aEngland
_c1993
300 _a50
944 _cBK
999 _c240726
_d240726