Nunan, D. (1992). Research methods in language learning. Cambridge University Press.
Lua i Stíl Chicago (17ú heag.)Nunan, David. Research Methods in Language Learning. Cambridge: Cambridge University Press, 1992.
Lua MLA (9ú heag.)Nunan, David. Research Methods in Language Learning. Cambridge University Press, 1992.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.