Cita APA

Soars, L., & Soars, J. (2005). New headway: Upper - Intermediate : Student's book (3rd ed.). Oxford: Oxford Univ. Press.

Chicago Style Citation

Soars, Liz, i John Soars. New Headway: Upper - Intermediate : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2005.

Cita MLA

Soars, Liz, i John Soars. New Headway: Upper - Intermediate : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2005.