Thesis (Ph. D.)--Columbia University. / Vita. Pub. also as Columbia university contributions to philosophy, psychology and education, vol. x, no. 3.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/609126464 |
| Date | January 1904 |
| Creators | Hughes, Percy, |
| Publisher | New York, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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