APA
Manz C. C., . (2003). Mastering self-leadership. Upper Saddle River: Prentice Hall.
Chicago
Manz Charles C, . 2003. Mastering self-leadership. Upper Saddle River: Prentice Hall.
Harvard
Manz C. C., . (2003). Mastering self-leadership. Upper Saddle River: Prentice Hall.
MLA
Manz Charles C, . Mastering self-leadership. Upper Saddle River: Prentice Hall. 2003.