1.Bennis (1959), pp. 259–260.
2.Maritz Research (2010).
4.Covey, Merrill, and Merrill (1994).
5.Shamir and Hooijberg (2008).
6.Covey (1992), pp. 62–64.
7.Caldwell, Swanson, Floyd, and Singley (2011).
11.This definition is attributed to the 33rd President of the United States, Harry S. Truman.
12.This definition of feminine leadership is attributed to Marilyn Loden, President of a management consulting firm.
13.This definition is attributed to Warren Bennis at a University of Maryland leadership symposium in 1988.
14.This definition is attributed to the sixth President of the United States, John Quincy Adams.
15.This definition summarizes the philosophy of ...