Thomson, G. (2003). On philosophy. Wadsworth.
Lua i Stíl Chicago (17ú heag.)Thomson, Garrett. On Philosophy. Belmont, Calif: Wadsworth, 2003.
Lua MLA (9ú heag.)Thomson, Garrett. On Philosophy. Wadsworth, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.