Wittenberg, R. M. (1961). The art of group discipline: A mental hygiene approach to leadership. Association Press.
Čikaški stil citiranja (17. izdanje)Wittenberg, Rudolph M. The Art of Group Discipline: A Mental Hygiene Approach to Leadership. New York, New York: Association Press, 1961.
MLA način citiranja (9. izdanje)Wittenberg, Rudolph M. The Art of Group Discipline: A Mental Hygiene Approach to Leadership. Association Press, 1961.
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