000 00350nam a2200145Ia 4500
020 _a0435028162
082 _bTR-121
_a510
100 _a"JOHN T.BLAIR"
245 0 _aPrimary mathematics
260 _bLondon : Heinemann Educational, 1985.
_c1975
300 _a251
944 _cTR
999 _c796188
_d796188