APA aipamena

Ortega, L. (2013). Understanding second language acquisition. New York: Routledge.

Chicago Style aipamena

Ortega, Lourdes. Understanding Second Language Acquisition. New York: Routledge, 2013.

MLA aipamena

Ortega, Lourdes. Understanding Second Language Acquisition. New York: Routledge, 2013.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.