Ellis, R. (2015). Understanding second language acquisition (Second edition.). Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Ellis, Rod. Understanding Second Language Acquisition. Second edition. Oxford: Oxford University Press, 2015.
Lua MLA (8ú heag.)Ellis, Rod. Understanding Second Language Acquisition. Second edition. Oxford University Press, 2015.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.