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| 005 | 20210219153509.0 | ||
| 008 | 991125n 000 0 eng u | ||
| 035 | _aUPN01000102934 | ||
| 100 | 1 | _aDuckworth, Eleanor Ruth | |
| 222 | 0 | _aHARVARD EDUCATIONAL REVIEW | |
| 245 | 0 | 0 | _aTwenty four, forty two, and I love you : keeping it complex |
| 260 | _aMassachusetts, EUA | ||
| 300 | _a1-24 | ||
| 362 | 0 | _a1991 Vol. 61, no. 1, feb. | |
| 653 | 0 | _aEDUCACION PREESCOLAR | |
| 653 | 0 | _aEDUCACION PRIMARIA | |
| 653 | 0 | _aPROCESO DE ENSEÑANZA-APRENDIZAJE | |
| 904 |
_aAC _b040745 |
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| 905 | _aArticulo | ||
| 999 |
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