Issued also as Thesis (Ph. D.)--Columbia University. / Bibliography: p. 145-53.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/587307966 |
| Date | January 1940 |
| Creators | Kaplan, Estelle, |
| Publisher | New York, Columbia University Press, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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