Craig, E. (2002). Philosophy: A very short introduction. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Craig, Edward. Philosophy: A Very Short Introduction. Oxford ; New York: Oxford University Press, 2002.
Lua MLA (8ú heag.)Craig, Edward. Philosophy: A Very Short Introduction. Oxford University Press, 2002.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.