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| 035 | _aUPN01000090442 | ||
| 100 | _aYEVISH, Irving A. | ||
| 222 | _aTHE EDUCATIONAL FORUM | ||
| 245 | _aThe observation fallacy | ||
| 260 | _aIndiana, EUA | ||
| 300 | _a171-175 | ||
| 362 | _a1968 Vol. 32, no. 2, jan. | ||
| 653 | 0 | _aENSEÑANZA | |
| 653 | 0 | _aEVALUACION EDUCATIVA | |
| 653 | 0 | _aMÉTODOS EDUCATIVOS | |
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| 905 | _aArticulo | ||
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