Lua APA (7ú heag.)
Williamson, T. (1996). Vagueness. Routledge.
Lua i Stíl Chicago (17ú heag.)
Williamson, Timothy. Vagueness. New York: Routledge, 1996.
Lua MLA (9ú heag.)
Williamson, Timothy. Vagueness. Routledge, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.