Cita APA

Soars, J., & Soars, L. (2005). American headway: Workbook. Oxford: Oxford Univ. Press.

Chicago Style Citation

Soars, John, i Liz Soars. American Headway: Workbook. Oxford: Oxford Univ. Press, 2005.

Cita MLA

Soars, John, i Liz Soars. American Headway: Workbook. Oxford: Oxford Univ. Press, 2005.

Atenció: Aquestes cites poden no estar 100% correctes.