Scientific method in supervision : the second yearbook of the National Conference of Supervisors and Directors of Instruction
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| OCLC: | 3106894 |
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| Соавтор: | |
| Другие авторы: | , |
| Язык: | English |
| Опубликовано: |
New York :
Bureau of Publications, Teachers College, Columbia University,
1929.
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| Предметы: | |
| Формат: | Monograph Note that CRL will digitize material from the collection when copyright allows. |