000 00488nam a2200205Ia 4500
008 210210b1946 xxu||||| |||| 00| 0 eng d
041 _aeng
082 _a370/83
100 _aSUMNER (W L)
245 _aTeaching of arithmatic and elementary mathematics
260 _aOxford
_bBasil Blackwell
_c1946
650 _aTeaching
650 _aof
650 _amathematics
650 _aelementary
650 _aarithmatic
650 _aand
690 _aEducation
906 _a005023
999 _c128706
_d128706