एपीए उद्धरण

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

शिकागो स्टाइल उद्धरण

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

एमएलए उद्धरण

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