Thesis (Ph. D.)--University of Pennsylvania, 1919. / Includes bibliographical references.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/609951918 |
| Date | January 1919 |
| Creators | Doernenburg, Emil, |
| Publisher | Philadelphia : Americana Germanica Press, |
| Source Sets | OCLC |
| Language | German |
| Detected Language | English |
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