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| 008 | 140529s1969 xxu||||| |||| 00| 0 spa d | ||
| 041 | _aspa | ||
| 100 | 1 |
_aBallauff, Theodor _9191530 |
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_aContención y libertad en la educación _c Theodor Ballauff |
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_aEducación _986687 |
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_tFolia Humanistica _gvol. 7, nº. 77, 1969, págs. 401-416 _wRev1220 |
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_c668865 _d668865 |
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