An Apparatus for Controlling a Stop Watch by Means of Sound...

An Apparatus for Controlling a Stop Watch by Means of Sound or Light

Chalfin, Norman L.
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Volume:
49
Language:
english
Journal:
The American Journal of Psychology
DOI:
10.2307/1416062
Date:
January, 1937
File:
PDF, 436 KB
english, 1937
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