Yukl,Gary. (2006). Leadership in organizations (6th ed.). Pearson Education.
Citazione stile Chigago Style (17a edizione)Yukl,Gary. Leadership in Organizations. 6th ed. Upper Saddle River, N.J.: Pearson Education, 2006.
Citatione MLA (9a ed.)Yukl,Gary. Leadership in Organizations. 6th ed. Pearson Education, 2006.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.