In Paper Covers
| Autor: | Arnold, William E., Frutchey, Fred P., Clifton, J. L., Kirkpatrick, Frances, Wolfle, Dael S., Landsittel, F. C. |
|---|---|
| Zdroj: | Educational Research Bulletin, 1933 Feb 01. 12(2), 50-53. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
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| Autor: | Arnold, William E., Frutchey, Fred P., Clifton, J. L., Kirkpatrick, Frances, Wolfle, Dael S., Landsittel, F. C. |
|---|---|
| Zdroj: | Educational Research Bulletin, 1933 Feb 01. 12(2), 50-53. |
| Databáze: | JSTOR Journals |
| Externí odkaz: |
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