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Educational achievement in relation to intelligence : as shown by teachers' marks, promotions, and scores in standard tests in certain elementary grades / by Charles W.St. John
(Harvard studies in education ; v. 15)

資料タイプ	図書
出版情報	Cambridge : Harvard University Press , 1930
本文言語	英語
大きさ	xiv, 219 p. : ill. ; 23 cm