Dyfyniad APA

Wittenberg, R. M. (1951). The art of group discipline: A mental hygiene approach to leadership. Association Press.

Dyfyniad Arddull Chicago

Wittenberg, Rudolph M. The Art of Group Discipline: A Mental Hygiene Approach to Leadership. New York: Association Press, 1951.

Dyfyniad MLA

Wittenberg, Rudolph M. The Art of Group Discipline: A Mental Hygiene Approach to Leadership. Association Press, 1951.

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