000 00344nam a2200145Ia 4500
020 _a0195773799
082 _b3300103
_a510
100 _a"tan,Winnie"
245 0 _aProgressive Mathematics 6B
260 _b,Oxford uni pess
_akarachi
_c1987
300 _a146
944 _cTB
999 _c363976
_d363976