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Subjects
Mathematics, History, Ancient Mathematics, Criticism and interpretation, Mathematics, history, Number concept, Probabilities, Statistics, Study and teachingPeople
Jean Piaget (1896-1980)ID Numbers
- OLID: OL1075168A
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August 20, 2008 | Edited by an anonymous user | fix author name |
April 1, 2008 | Created by an anonymous user | initial import |