Campbell, D. (2003). Leadership in Action: Issues and Observations - Taking Charge - Your First 100 Days on the Job. Center for Creative Leadership.
Chicago-Zitierstil (17. Ausg.)Campbell, David. Leadership in Action: Issues and Observations - Taking Charge - Your First 100 Days on the Job. [Place of publication not identified]: Center for Creative Leadership, 2003.
MLA-Zitierstil (9. Ausg.)Campbell, David. Leadership in Action: Issues and Observations - Taking Charge - Your First 100 Days on the Job. Center for Creative Leadership, 2003.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.