APA-referens

Cohen, W. A. (2010). Drucker on leadership: New lessons from the father of modern management. Jossey-Bass.

Chicago-stil citat

Cohen, William A. Drucker on Leadership: New Lessons from the Father of Modern Management. San Francisco: Jossey-Bass, 2010.

MLA-referens

Cohen, William A. Drucker on Leadership: New Lessons from the Father of Modern Management. Jossey-Bass, 2010.