APA aipamena

(1989). Headway teacher's book: Advanced. Oxford: Oxford University Press.

Chicago Style aipamena

Headway Teacher's Book: Advanced. Oxford: Oxford University Press, 1989.

MLA aipamena

Headway Teacher's Book: Advanced. Oxford: Oxford University Press, 1989.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.