APA aipamena

Soars, J., & Soars, L. (2001). American headway: Student book 2. Oxford: Oxford Univ. Press.

Chicago Style aipamena

Soars, John, và Liz Soars. American Headway: Student Book 2. Oxford: Oxford Univ. Press, 2001.

MLA aipamena

Soars, John, và Liz Soars. American Headway: Student Book 2. Oxford: Oxford Univ. Press, 2001.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.