| 000 | 00520nab a2200145Ia 4500 | ||
|---|---|---|---|
| 003 | ES-SlBCS | ||
| 005 | 20210601124222.0 | ||
| 008 | 140529s1968 xxu||||| |||| 00| 0 eng d | ||
| 041 | _aeng | ||
| 100 | 1 |
_aWittenberg, Alexander _9137948 |
|
| 245 | 0 | 0 |
_aPriorities and Responsabilities in the Reform of Mathematical Education. An Essay in Educational Meta-theory _c Alexander Wittenberg |
| 650 | 0 | 4 |
_aMatemática-Educación _9138003 |
| 773 | 0 |
_tDialectica _gvol. 22, nº. 1, 1968, págs. 58-74 _wbise0000072577 |
|
| 942 | _cAR | ||
| 999 |
_c511216 _d511216 |
||