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A diagnostic test of aptitude for clerical office work based on an analysis of clerical operations,

Thesis (Ph. D.)--Columbia University, 1924. / Vita. Published also as Teachers college, Columbia university. Contributions to education, no. 148.
Date January 1924
CreatorsRuggles, Allen Mead,
PublisherNew York, Teachers college, Columbia University,
Source SetsOCLC
Detected LanguageEnglish

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