Issued also as thesis (PH. D.) Columbia university. / Bibliography: p. 42.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/644278640 |
| Date | January 1941 |
| Creators | Rogers, Spaulding, |
| Publisher | New York, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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