Cornell, W. S. (1909). The Need of Improved Records of the Physical Condition of School Children. Psychol Clin.
Chicago-stil citatCornell, Walter S. "The Need of Improved Records of the Physical Condition of School Children." Psychol Clin 1909.
MLA-referensCornell, Walter S. "The Need of Improved Records of the Physical Condition of School Children." Psychol Clin 1909.
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