APA (7th ed.) Citation

Drucker, P. F., & Collins, J. C. (2008). The five most important questions you will ever ask about your organization ([New ed.].). Leader to Leader Institute ; Jossey-Bass.

Chicago Style (17th ed.) Citation

Drucker, Peter F., and James C. Collins. The Five Most Important Questions You Will Ever Ask About Your Organization. [New ed.]. [New York] : San Francisco: Leader to Leader Institute ; Jossey-Bass, 2008.

MLA (9th ed.) Citation

Drucker, Peter F., and James C. Collins. The Five Most Important Questions You Will Ever Ask About Your Organization. [New ed.]. Leader to Leader Institute ; Jossey-Bass, 2008.