Trombley, S. (2013). Fifty thinkers who shaped the modern world. Atlantic Books.
Lua i Stíl Chicago (17ú heag.)Trombley, Stephen. Fifty Thinkers Who Shaped the Modern World. London: Atlantic Books, 2013.
Lua MLA (9ú heag.)Trombley, Stephen. Fifty Thinkers Who Shaped the Modern World. Atlantic Books, 2013.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.