Dr. Arnold Gesell studying a baby at Yale's child psychology lab, 1947. Photo by Herbert Gehr.
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ゲゼル全集 第1期10 / 原タイトル:Der Abbau des Staates 原タイトル:Der Aufstieg des Abendlandesほか[本/雑誌] (単行本・ムック) /…
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Arnold-Gesell-Maturation-Theory-Explained
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