000 00345nam a2200145Ia 4500
020 _a0195799410
082 _b1380
_a510
100 _a"R. Choong"
245 0 _aThinking Mathematics 3
260 _bOxford University Press
_aSingapore
_c2003
300 _a176
944 _cTR
999 _c107448
_d107448