Mirror tonoscopes.
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| Title: | Mirror tonoscopes. |
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| Authors: | METFESSEL, Milton, Musgrave, Harrison |
| Source: | American Journal of Psychology; Jul 1934, Vol. 46, p478-480, 3p |
| Database: | Humanities Source |
| ISSN: | 00029556 |
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| DOI: | 10.2307/1415605 |