Cita APA

Kouzes, J. M., & Posner, B. Z. (2007). The leadership challenge. San Francisco, Calif: Jossey-Bass.

Chicago Style Citation

Kouzes, James M., i Barry Z. Posner. The Leadership Challenge. San Francisco, Calif: Jossey-Bass, 2007.

Cita MLA

Kouzes, James M., i Barry Z. Posner. The Leadership Challenge. San Francisco, Calif: Jossey-Bass, 2007.