000 00297nam a2200133Ia 4500
100 _aMurray, W.
490 _aLadybird Basic Arithmetic Series
942 _cBK
654 _a
245 _aSubtraction made easy
260 _aLoughborough
_bWills & Hepworth
_c1967
082 _aJ
300 _a52
999 _c369106
_d369106
041 _aeng