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The effect of length of shcool attendance upon mental and educational ages,

Thesis (Ph. D.)--Columbia University, 1927. / Vita. "This material will appear as a chapter in the twenty-seventh yearbook of the National Society for the Study of Education." Bibliography: p. 29-30. Also issued in print.

Identiferoai:union.ndltd.org:OCLC/oai:xtcat.oclc.org:OCLCNo/301046585
Date January 1900
CreatorsDenworth, Katharine M.,
Source SetsOCLC
LanguageEnglish
Detected LanguageEnglish

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