000 00342nam a2200145Ia 4500
020 _a0195773780
082 _bT.153
_a510
100 _a"tan,Winnie"
245 0 _aProgressive Mathematics 6A
260 _b,Oxford uni pess
_akarachi
_c1987
300 _a146
944 _cTB
999 _c387029
_d387029