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| 035 | _aUPN01000077618 | ||
| 222 | _aEL MAESTRO | ||
| 245 | _aEstadÃstica educativa : San Luis Potosà | ||
| 300 | _a114-130 | ||
| 362 | 0 | _a1969 No. 10, dic. | |
| 653 | 0 | _aESTADISTICA EDUCATIVA | |
| 653 | 0 | _aSAN LUIS POTOSI, MEXICO | |
| 653 | 0 | _aSISTEMA EDUCATIVO | |
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| 905 | _aArticulo | ||
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