Παραπομπή APA

Young, P. T. (1961). Motivation and emotion: A survey of the determinants of human and animal activity. John wiley & Sons.

Παραπομπή Chicago Style

Young, Paul Thomas. Motivation and Emotion: A Survey of the Determinants of Human and Animal Activity. New York: John wiley & Sons, 1961.

Παραπομπή MLA

Young, Paul Thomas. Motivation and Emotion: A Survey of the Determinants of Human and Animal Activity. John wiley & Sons, 1961.