Cohen, W. A. (2010). Drucker on leadership: New lessons from the father of modern management. Jossey-Bass.
استشهاد بنمط شيكاغوCohen, William A. Drucker on Leadership: New Lessons from the Father of Modern Management. San Francisco: Jossey-Bass, 2010.
MLA استشهادCohen, William A. Drucker on Leadership: New Lessons from the Father of Modern Management. Jossey-Bass, 2010.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.