Blackburn, S. (1994). The Oxford dictionary of philosophy. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Blackburn, Simon. The Oxford Dictionary of Philosophy. Oxford: Oxford University Press, 1994.
Lua MLA (9ú heag.)Blackburn, Simon. The Oxford Dictionary of Philosophy. Oxford University Press, 1994.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.