Thesis (Ph. D.)--Columbia University, 1933. / Vita. Published also as Teachers College, Columbia University, Contributions to education, no. 582. Bibliography: p. 88-94.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/609885497 |
| Date | January 1933 |
| Creators | Ladd, Margaret Rhoads, |
| Publisher | New York, Teachers College, Columbia University, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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