Thesis (Ph. D.)--Columbia University, 1931. / Vita.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/610135008 |
| Date | January 1930 |
| Creators | Nagel, Ernest, |
| Publisher | [New York?] |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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