000 00341nam a2200145Ia 4500
020 _a0195773780
082 _b4411
_a510
100 _a"tan,Winnie"
245 0 _aProgressive Mathematics 6A
260 _b,Oxford uni pess
_akarachi
_c1987
300 _a146
944 _cTR
999 _c551225
_d551225