Cita APA (7th ed.)
Soars, L., & Soars, L. (2012). New headway intermediate student's book (4th ed.). Oxford University Press.
Cita Chicago (17th ed.)
Soars, Liz, i Liz Soars. New Headway Intermediate Student's Book. 4th ed. Oxford: Oxford University Press, 2012.
Cita MLA (9th ed.)
Soars, Liz, i Liz Soars. New Headway Intermediate Student's Book. 4th ed. Oxford University Press, 2012.
Atenció: Aquestes cites poden no estar 100% correctes.