Katzner, K. (1995). The languages of the world (New ed.). Routledge.
Lua i Stíl Chicago (17ú heag.)Katzner, Kenneth. The Languages of the World. New ed. London: Routledge, 1995.
Lua MLA (9ú heag.)Katzner, Kenneth. The Languages of the World. New ed. Routledge, 1995.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.