Cita APA (7th ed.)
Kouzes, J. M., & Posner, B. Z. (1987). The leadership challenge: How to get extraordinary things done in organizations. Jossey-Bass.
Cita Chicago (17th ed.)
Kouzes, James M., i Barry Z. Posner. The Leadership Challenge: How to Get Extraordinary Things Done in Organizations. San Francisco: Jossey-Bass, 1987.
Cita MLA (9th ed.)
Kouzes, James M., i Barry Z. Posner. The Leadership Challenge: How to Get Extraordinary Things Done in Organizations. Jossey-Bass, 1987.
Atenció: Aquestes cites poden no estar 100% correctes.