Soars L. Liz & Soars J. John. (2001). New Headway English Course. Intermediate: Student's Book. Oxford, Oxford University Press, 2001.

Soars L. Liz and Soars J. John. New Headway English Course. Intermediate: Student's Book. Oxford, Oxford University Press, 2001, 2001.

Soars L. Liz and Soars J. John. New Headway English Course. Intermediate: Student's Book. Oxford, Oxford University Press, 2001, 2001.