Thesis (Ph. D.)--University of Pennsylvania, 1930. / Published also without thesis note. Bibliography: p. 187-199.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/560343447 |
| Date | January 1931 |
| Creators | Nulle, Stebelton Henry, |
| Publisher | Philadelphia, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
| Coverage | Great Britain |
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