APA aipamena

Soars, J., & Soars, L. (2002). American headway starter: Student book. Oxford: Oxford Univ. Press.

Chicago Style aipamena

Soars, John, và Liz Soars. American Headway Starter: Student Book. Oxford: Oxford Univ. Press, 2002.

MLA aipamena

Soars, John, và Liz Soars. American Headway Starter: Student Book. Oxford: Oxford Univ. Press, 2002.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.