Ellis, R. (2015). Understanding second language acquisition (Second edition.). Oxford University Press.
Chicago Style aipamenaEllis, Rod. Understanding Second Language Acquisition. Second edition. Oxford: Oxford University Press, 2015.
MLA aipamenaEllis, Rod. Understanding Second Language Acquisition. Second edition. Oxford University Press, 2015.
Kontuz: berrikusi erreferentzia hauek erabili aurretik.