The number combinations, their relative difficulty and the frequency of their appearance in text-books,
Sparad:
| OCLC: | 4285002 |
|---|---|
| Huvudupphovsman: | |
| Övriga upphovsmän: | |
| Språk: | English |
| Publicerad: |
Madison, Wis.
[1924]
|
| Serie: | University of Wisconsin. Bureau of Educational Research. Bulletin no. 2. July 1924.
|
| Ämnen: | |
| Materialtyp: | Monograph Note that CRL will digitize material from the collection when copyright allows. |