Yule, G. (2006). The study of language (3rd ed.). Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Yule, George. The Study of Language. 3rd ed. Cambridge [England]: Cambridge University Press, 2006.
Lua MLA (9ú heag.)Yule, George. The Study of Language. 3rd ed. Cambridge University Press, 2006.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.