APA aipamena

Soars, J., & Soars, L. New headway English course. Oxford University Press.

Chicago Style aipamena

Soars, John, and Liz Soars. New Headway English Course. Oxford : c2000 [2001 printing]: Oxford University Press.

MLA aipamena

Soars, John, and Liz Soars. New Headway English Course. Oxford University Press.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.