Ellis, R. (2012). Understanding second language acquisition. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Ellis, Rod. Understanding Second Language Acquisition. Oxford ; New York: Oxford University Press, 2012.
Lua MLA (8ú heag.)Ellis, Rod. Understanding Second Language Acquisition. Oxford University Press, 2012.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.