Cita APA

Soars, L., Falla, T., & Soars, J. (2003). New headway: Advanced : Workbook with key. Oxford: Oxford Univ. Press.

Chicago Style Citation

Soars, Liz, Tim Falla, i John Soars. New Headway: Advanced : Workbook With Key. Oxford: Oxford Univ. Press, 2003.

Cita MLA

Soars, Liz, Tim Falla, i John Soars. New Headway: Advanced : Workbook With Key. Oxford: Oxford Univ. Press, 2003.