Thesis (Ph. D.)--University of Pennsylvania.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/297664772 |
| Date | January 1901 |
| Creators | Yocum, A. Duncan |
| Publisher | Philadelphia, Avil Print. Co., |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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