APA aipamena

Ellis, R. (2012). Understanding second language acquisition. Oxford University Press.

Chicago Style aipamena

Ellis, Rod. Understanding Second Language Acquisition. Oxford ; New York: Oxford University Press, 2012.

MLA aipamena

Ellis, Rod. Understanding Second Language Acquisition. Oxford University Press, 2012.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.