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| 035 | _aUPN01000032695 | ||
| 049 | _aCG | ||
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_aLB1028 _bL3.3 |
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_aLandsheere, Gilbert de, _d1921-2001 _928940 |
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_aLa investigación experimental en educacion / _cGilbert de Landsheere. |
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_aSuiza : _bUNESCO, _c1982. |
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| 300 | _a116 p. | ||
| 440 | 0 | _aCiencias de la educación | |
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_aEducación _xInvestigación _94070 |
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_aEvaluación _914106 |
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| 905 | _aLibro | ||
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_c32695 _d32695 |
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