Thesis (Ph. D.)--University of Pennsylvania, 1934. / "Literature cited": p. 14.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/645103159 |
| Date | January 1933 |
| Creators | Obold, Walter Lord, |
| Publisher | Philadelphia [Westbrook publishing company] |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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