Ellis, R., & Barkhuizen, G. P. (2005). Analysing learner language. Oxford University Press.
Lua i Stíl Chicago (17ú heag.)Ellis, Rod, agus Gary Patrick Barkhuizen. Analysing Learner Language. Oxford ; New York: Oxford University Press, 2005.
Lua MLA (8ú heag.)Ellis, Rod, agus Gary Patrick Barkhuizen. Analysing Learner Language. Oxford University Press, 2005.
Rabhadh: Seans nach mbeach na luanna seo go hiomlán cruinn i ngach uile chás.