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| 005 | 20250508153438.0 | ||
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_a510.72, UNI _qFEDL |
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| 245 | 0 | _aAnalysis of research in the teaching of mathematics 1957 and 1958 | |
| 245 | 0 | _cU S Department of Health, Education and Welfare | |
| 260 |
_aWashington, USA _bU.S. Government Printing Office _c1960 |
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| 300 | _avi,50p | ||
| 942 |
_cTEXL _h510.72, UNI |
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_c1342936 _d1342936 |
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