Thesis (Ph. D.)--University of Pennsylvania, 1913. / Series title also on t.p. "Bibliographie": p. 128-131.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/260321604 |
| Date | January 1916 |
| Creators | Betz, Gottlieb Augustus, |
| Publisher | [Philadelphia] |
| Source Sets | OCLC |
| Language | German |
| Detected Language | German |
| Coverage | Germany |
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