Thesis (Ph. D.)--University of Michigan, 1931. / Cover title. Thesis note on p. 259. "Offprinted from the American journal of psychology ... April 1934, vol. XLVI."
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/557571112 |
| Date | January 1900 |
| Creators | Billings, Marion Leroy, |
| Publisher | Ithaca, University of Illinois Press, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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