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| 003 | ES-SlBCS | ||
| 005 | 20210601132022.0 | ||
| 008 | 140529s1977 xxu||||| |||| 00| 0 ger d | ||
| 041 | _ager | ||
| 100 | 1 |
_aHeldmann, Werner _9190724 |
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_aDas pädagogische Konzept der Kooperativen Schule _c Werner Heldmann |
| 650 | 0 | 4 |
_aPedagogía _915877 |
| 773 | 0 |
_tNeue Ordnung (Die) _gvol. 31, 1977, págs. 192-203 / 264-271 _wRev294 |
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| 942 | _cAR | ||
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_c572819 _d572819 |
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