000 00278nam a2200109Ia 4500
942 _cBK
654 _a
245 _aTeaching mathematics in secondary schools
260 _aLondon
_bHer Majesty's Stationery Office
_c1961 # 1958
082 _a375.51
300 _bPb
_c31.8
_aviii,154
999 _c406617
_d406617
041 _aeng