Hurley, P. J. (2007). Introducing to Logic. Wadsworth.
Lua i Stíl Chicago (17ú heag.)Hurley, Patric J. Introducing to Logic. Australia: Wadsworth, 2007.
Lua MLA (9ú heag.)Hurley, Patric J. Introducing to Logic. Wadsworth, 2007.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.