Young, P. T. (1961). Motivation and emotion: A survey of the determinants of human and animal activity. John wiley & Sons.
Chicago Edition CitationYoung, Paul Thomas. Motivation and Emotion: A Survey of the Determinants of Human and Animal Activity. New York: John wiley & Sons, 1961.
ציטוט MLAYoung, Paul Thomas. Motivation and Emotion: A Survey of the Determinants of Human and Animal Activity. John wiley & Sons, 1961.
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