Yukl Gary. (2011). Leadership in Organizations (7th.). Pearson.
Citazione stile Chigago Style (17a edizione)Yukl Gary. Leadership in Organizations. 7th. Delhi: Pearson, 2011.
Citatione MLA (9a ed.)Yukl Gary. Leadership in Organizations. 7th. Pearson, 2011.
Attenzione: Queste citazioni potrebbero non essere precise al 100%.