Educational research; its nature, essential conditions, and controlling concepts ...
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| Corporate Author: | |
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| Format: | Book |
| Language: | English |
| Published: |
[Washington, D. C.,
The American council on education,
c1939]
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| Series: | American council on education. Studies. Ser. I. [Reports of committees of the council] vol. III, no. 10.
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| Subjects: |
