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| 900 | 0 | 0 | _a19990825 |
| 901 | 0 | 0 | _aENG |
| 020 | 0 | 0 | _a0631189106 |
| 903 | 0 | 0 | _a34245 |
| 245 | 0 | 0 | _aThe Development of Thought : Equilibration of Cognitive Structures |
| 100 | 0 | 0 | _aPiaget, Jean |
| 902 | 0 | 0 | _a155.413 |
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_aOxford _bBasil Blackwell _c1975 |
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||