Cita APA (7a ed.)

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

Cita Chicago Style (17a ed.)

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

Cita MLA (8a ed.)

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