- About
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The Global ETD Search service is a free service for researchers
to find electronic theses and dissertations. This service is
provided by the
Networked Digital Library of Theses and Dissertations.
Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
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The diurnal course of efficiencyMarsh, Howard D. January 1906 (has links)
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.
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