APA Citation

Soars, L., & Soars, J. (1998). New headway English course: Upper-intermediate student's book. New York: Oxford University Press.

Chicago Style Citation

Soars, Liz, and John Soars. New Headway English Course: Upper-intermediate Student's Book. New York: Oxford University Press, 1998.

MLA Citation

Soars, Liz, and John Soars. New Headway English Course: Upper-intermediate Student's Book. New York: Oxford University Press, 1998.

Warning: These citations may not always be 100% accurate.