Soars, J., & Soars, L. (2003). New Headway: Intermediate student's book (The new edition.). Oxford University Press.

Soars, John, and Liz Soars. New Headway: Intermediate Student's Book. The new edition. Oxford: Oxford University Press, 2003.

Soars, John, and Liz Soars. New Headway: Intermediate Student's Book. The new edition. Oxford University Press, 2003.