The number combinations, their relative difficulty and the frequency of their appearance in text-books,
Bewaard in:
| OCLC: | 4285002 |
|---|---|
| Hoofdauteur: | |
| Andere auteurs: | |
| Taal: | English |
| Gepubliceerd in: |
Madison, Wis.
[1924]
|
| Reeks: | University of Wisconsin. Bureau of Educational Research. Bulletin no. 2. July 1924.
|
| Onderwerpen: | |
| Formaat: | Monograph Note that CRL will digitize material from the collection when copyright allows. |