APA Style

Soars, L., Soars, L. (2016). New Headway: Pre-Intermediate Workbook Without Key (4th Edition). New York: Oxford Universiy Press.

MLA Style

Soars, Liz-p., Soars, Liz. "New Headway: Pre-Intermediate Workbook Without Key". 4th Edition New York: Oxford Universiy Press, 2016. Text.