Plag, I. (2003). Word-formation in English. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Plag, Ingo. Word-formation in English. Cambridge [Cambridgeshire] ; New York: Cambridge University Press, 2003.
Lua MLA (8ú heag.)Plag, Ingo. Word-formation in English. Cambridge University Press, 2003.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.