Kouzes, J. M. . .., & Posner,Barry Z. (2005). Leadership challenge (3rd ed.). Jossey-Bass.
Chicago Style aipamenaKouzes, James M ., and Posner,Barry Z. Leadership Challenge. 3rd ed. London: Jossey-Bass, 2005.
MLA aipamenaKouzes, James M ., and Posner,Barry Z. Leadership Challenge. 3rd ed. Jossey-Bass, 2005.
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