The authors' Thesis (Ph. D.)--University of Pennsylvania, 1914.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/301384153 |
| Date | January 1920 |
| Creators | Little, Esther Louise. Cotton, William Joseph Henry, |
| Publisher | Lancaster, Pa., Press of the New era Print. Co., |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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