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| 035 | _aUPN01000073685 | ||
| 100 | _aTRIGO AZA, Eugenia | ||
| 222 | _aREVISTA DE EDUCACION | ||
| 245 | _aLa educación del tiempo libre de los jóvenes | ||
| 300 | _a369-392 | ||
| 362 | _a1992 No. 298, may.-ago. | ||
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| 653 | 0 | _aEDUCACION SECUNDARIA | |
| 653 | 0 | _aTIEMPO LIBRE | |
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