Published also as Thesis (Ph. D.)--Ohio state University. / "The experimental groups consisted of ... freshmen ... of the Ohio state university."--Introd.
| Identifer | oai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/614386139 |
| Date | January 1930 |
| Creators | Edgerton, Harold A. |
| Publisher | Baltimore, Warwick and York, Inc., |
| Source Sets | OCLC |
| Language | English |
| Detected Language | English |
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