Babbitt, I. (1978). Democracy and leadership. Liberty classics.
Lua i Stíl Chicago (17ú heag.)Babbitt, Irving. Democracy and Leadership. Indianapolis: Liberty classics, 1978.
Lua MLA (9ú heag.)Babbitt, Irving. Democracy and Leadership. Liberty classics, 1978.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.