Dyfyniad APA

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

Dyfyniad Arddull Chicago

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

Dyfyniad MLA

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

Rhybudd: Mae'n bosib nad yw'r dyfyniadau hyn bob amser yn 100% cywir.