YUKL, G. (2010). Leadership in Organizations ed.7. s.n.
Lua i Stíl Chicago (17ú heag.)YUKL, Gary. Leadership in Organizations Ed.7. s.n, 2010.
Lua MLA (8ú heag.)YUKL, Gary. Leadership in Organizations Ed.7. s.n, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.