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The authors report the results of some half dozen years of research into when and how children acquire numerical skills. They provide a new set of answers to these questions, and overturn much of the traditional wisdom on the subject.
- Format: Pocket/Paperback
- ISBN: 9780674116375
- Språk: Engelska
- Utgivningsdatum: 1986-01-01
- Förlag: Harvard University Press