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035 | _aUPN01000101676 | ||
100 | _aBehrend, Ruth Von | ||
222 | _aGRADE TEACHER | ||
245 | _aA teacher shares a successful idea | ||
300 | _a54-57 | ||
362 | _a1968 Sep. | ||
653 | 0 | _aEDUCACION PRIMARIA | |
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653 | 0 | _aMOTIVACION | |
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653 | 0 | _aSALON DE CLASES | |
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905 | _aArticulo | ||
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