Hacker, S., & Roberts, T. (2003). Transformational leadership: Creating organizations of meaning. ASQ Quality Press.
Lua i Stíl Chicago (17ú heag.)Hacker, Stephen, agus Tammy Roberts. Transformational Leadership: Creating Organizations of Meaning. Milwaukee, Wisconsin: ASQ Quality Press, 2003.
Lua MLA (9ú heag.)Hacker, Stephen, agus Tammy Roberts. Transformational Leadership: Creating Organizations of Meaning. ASQ Quality Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.