Thesis (Ph. D.)--Columbia University, 1929. / Vita. Published also as Teachers college, Columbia university, Contributions to education, no. 357. Bibliography: p. 110-113.
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/300591858 |
Date | January 1929 |
Creators | Sayers, Ephraim Vern, |
Publisher | New York city, Teachers college, Columbia University, |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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