Close, F. E. (2009). Nothing: A very short introduction. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Close, F. E. Nothing: A Very Short Introduction. Oxford ; New York: Oxford University Press, 2009.
Lua MLA (9ú heag.)Close, F. E. Nothing: A Very Short Introduction. Oxford University Press, 2009.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.