Popper, M. (2005). Leaders who transform society: What drives them and why we are attracted. Praeger Publishers.
Lua i Stíl Chicago (17ú heag.)Popper, Micha. Leaders Who Transform Society: What Drives Them and Why We Are Attracted. Westport, Conn: Praeger Publishers, 2005.
Lua MLA (9ú heag.)Popper, Micha. Leaders Who Transform Society: What Drives Them and Why We Are Attracted. Praeger Publishers, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.