Cita APA (7th ed.)

Kouzes, J. M., & Posner, B. Z. (2017). The leadership challenge: How to make extraordinary things happen in organizations (Sixth edition.). John Wiley & Sons, Inc..

Cita Chicago (17th ed.)

Kouzes, James M., i Barry Z. Posner. The Leadership Challenge: How to Make Extraordinary Things Happen in Organizations. Sixth edition. Hoboken, New Jersey: John Wiley & Sons, Inc., 2017.

Cita MLA (9th ed.)

Kouzes, James M., i Barry Z. Posner. The Leadership Challenge: How to Make Extraordinary Things Happen in Organizations. Sixth edition. John Wiley & Sons, Inc., 2017.