New headway : pre-intermediate English course : workbook with key.

MLA

Soars, Liz, and John Soars. New Headway : Pre-intermediate English Course : Workbook with Key. Oxford: University Press, 2001.

APA

Soars, L., & Soars, J. (2001). New headway : pre-intermediate English course : workbook with key. Oxford: University Press.

Chicago

Soars, Liz, and John Soars. New Headway: Pre-Intermediate English Course : Workbook with Key. Oxford: University Press, 2001.