CONSERVATION OF NUMBER IN VERY YOUNG CHILDREN: A FAILURE TO REPLICATE MEHLER AND BEVER
| Autor: | Willoughby, Robert H., Trachy, Sharon |
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| Zdroj: | Merrill-Palmer Quarterly of Behavior and Development, 1971 Jul 01. 17(3), 205-209. |
| Databáze: | JSTOR Journals |
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