Issued also as thesis (Ph. D.) Columbia university. / Bibliography: p. 221-226.
Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/638019358 |
Date | January 1933 |
Creators | Crutsinger, George M. |
Publisher | New York city, Teachers college, Columbia university, |
Source Sets | OCLC |
Language | English |
Detected Language | English |
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