APA aipamena

Alan Maley. (1987). Listening Upper - Intermediate. Oxford University Press.

Chicago Style aipamena

Alan Maley. Listening Upper - Intermediate. Oxford University Press, 1987.

MLA aipamena

Alan Maley. Listening Upper - Intermediate. Oxford University Press, 1987.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.