APA (7th ed.) Citation

Kouzes, J. M., & Posner, B. (2007). The leadership challenge. Jossey Bass.

Chicago Style (17th ed.) Citation

Kouzes, James M., and Barry Posner. The Leadership Challenge. USA : California: Jossey Bass, 2007.

MLA (9th ed.) Citation

Kouzes, James M., and Barry Posner. The Leadership Challenge. Jossey Bass, 2007.