Thesis (Ph. D.)--University of Minnesota, 1921. / Cover title. Forms in pocket. Reprinted from the Journal of Applied Psychology, March, 1923.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/579130074 |
| Date | January 1923 |
| Creators | Johnson, Oscar Julius. |
| Publisher | [Worcester, Mass?] Journal of Applied Psychology, |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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