Napoli, D. J. (1996). Linguistics: An introduction. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Napoli, Donna Jo. Linguistics: An Introduction. New York: Oxford University Press, 1996.
Lua MLA (9ú heag.)Napoli, Donna Jo. Linguistics: An Introduction. Oxford University Press, 1996.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.