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| 100 | 1 | _aPasnak, Robert | |
| 222 | _aJOURNAL OF EDUCATIONAL RESEARCH | ||
| 245 | _aCognitive and achievement gains for kindergartners instructed in piagetian operations | ||
| 300 | _a5-13 | ||
| 362 | 0 | _a1992 Vol. 85, no. 1 | |
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| 653 | 0 | _aRENDIMIENTO ACADEMICO | |
| 700 | 1 | _aMcCutcheon, Lynn, | |
| 700 | 1 | _ecoaut. | |
| 700 | 1 | _aHolt, Robert, | |
| 700 | 1 | _ecoaut. | |
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