APA (7th ed.) Zitazioa
Kouzes, J. M., & Posner, B. Z. (2013). Finding the courage to lead. Leadership Challenge.
Chicago Style (17th ed.) Zitazioa
Kouzes, James M., eta Barry Z. Posner. Finding the Courage to Lead. San Francisco, Calif.: Leadership Challenge, 2013.
MLA (9th ed.) Zitazioa
Kouzes, James M., eta Barry Z. Posner. Finding the Courage to Lead. Leadership Challenge, 2013.
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