Thesis (Ph. D)--Columbia University, 1930. / Vita. Published also as Teachers College, Columbia University, Contributions to education, no. 433. Bibliography: p. 30-31. Also issued in print.
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/300559676 |
Date | January 1930 |
Creators | Hartley, Helene W. |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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