Supervising extra-curricular activities in the American secondary school
| Egile nagusia: | |
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| Formatua: | Liburua |
| Hizkuntza: | English |
| Argitaratua: |
New York [etc.]
McGraw-Hill book company, inc.
1930.
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| Edizioa: | 1st ed. |
| Gaiak: |