000 00518nam a2200169Ia 4500
005 20250114190922.0
008 250113s9999 xx 000 0 und d
041 _aeng
082 _bG5.23
_aT:3Bl7361:N35
100 _aNational council of teachers of mathematics
245 _aNational council of teachers of mathematics
260 _c1957
_bInsights into modern mathematics
_aWashington
300 _aviii,440p.
365 _cRs.
650 _aT:3Bl7361:N35
700 _aNational council of teachers of mathematics
999 _c70678
_d70678