Northouse, P. G. (2010). Leadership. Sage Publications India Pvt. Ltd.
Lua i Stíl Chicago (17ú heag.)Northouse, Peter G. Leadership. New Delhi: Sage Publications India Pvt. Ltd, 2010.
Lua MLA (9ú heag.)Northouse, Peter G. Leadership. Sage Publications India Pvt. Ltd, 2010.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.