Northouse, P. G. (2003). Leadership: Theory and practice (3rd.). Sage.
Lua i Stíl Chicago (17ú heag.)Northouse, Peter Guy. Leadership: Theory and Practice. 3rd. Thousand Oaks, Calif.: Sage, 2003.
Lua MLA (8ú heag.)Northouse, Peter Guy. Leadership: Theory and Practice. 3rd. Sage, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.