Thesis (Ph. D.)--Columbia University, 1923. / Published also as contributions to education, Teachers college, Columbia university, no. 138. Bibliography: p. 93-95.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/578754426 |
| Date | January 1923 |
| Creators | Wells, Guy Fred, |
| Publisher | New York city, Teachers college, Columbia University, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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