Christiansen, E. R. (1961). Intelligenz und Wille in der Arbeitskurve.
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Chicago Style (17th ed.) Citation
Christiansen, Ewald Rudolf. Intelligenz Und Wille in Der Arbeitskurve. Mainz, 1961.
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ציטוט MLA
Christiansen, Ewald Rudolf. Intelligenz Und Wille in Der Arbeitskurve. 1961.
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אזהרה: ציטוטים אלה לעיתים לא מדויקים ב 100%.