Thesis (Ph. D.)--Columbia University, 1929. / Vita. Published also as Teachers college, Columbia university, Contributions to education, no. 358. Bibliography: p. 124-130.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/581294687 |
| Date | January 1929 |
| Creators | Caswell, Hollis L. |
| Publisher | New York city, Teachers college, Columbia University, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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