Thesis (Ph. D.)--University of Pennsylvania, 1925.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/588952880 |
| Date | January 1925 |
| Creators | Lewis, Leicester Crosby, |
| Publisher | Philadelphia, [s.n.] |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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