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The diurnal course of efficiency

Thesis (Ph. D.)--Columbia University. / Pub. also as Archives of philosophy, psychology and scientific methods, no. 7, and as Columbia university contributions to philosophy and psychology, vol. XIV, no. 3. Bibliography: p. 97-99.

Identiferoai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/565337548
Date January 1906
CreatorsMarsh, Howard D.
PublisherNew York,
Source SetsOCLC
LanguageEnglish
Detected LanguageEnglish

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