The number combinations, their relative difficulty and the frequency of their appearance in text-books,
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| OCLC: | 4285002 |
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| Hlavní autor: | |
| Další autoři: | |
| Jazyk: | English |
| Vydáno: |
Madison, Wis.
[1924]
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| Edice: | University of Wisconsin. Bureau of Educational Research. Bulletin no. 2. July 1924.
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| Témata: | |
| Médium: | Monograph Note that CRL will digitize material from the collection when copyright allows. |