Thesis (Ph. D.)--University of Pennsylvania, 1930. / Published also without thesis note. Description based on print version record. Bibliography: p. 216-229.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/613252010 |
| Date | January 1935 |
| Creators | Mitchell, Pearl Boring, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
| Coverage | Germany Germany France Europe |
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