Mental fatigue / by Tsuru Arai.

  • Arai, Tsuru, 1887-
Date:
1912
Catalogue details

Licence: In copyright

Credit: Mental fatigue / by Tsuru Arai. Source: Wellcome Collection.

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    MENTAL FATIGUE BY TSURU ARAI, Ph. D. TEACHERS COLLEGE, COLUMBIA UNIVERSITY CONTRIBUTIONS TO EDUCATION, No. 54 PUBLISHED BY ©rarfyrrn (Eollrg*. (Columbia llnioproitij NEW YORK CITY 1912
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