APA aipamena

Soars, L., & Soars, J. (1998). New Headway English Course, Upper-Intermediate: Teacher's Book. Oxford: Oxford University Press.

Chicago Style aipamena

Soars, Liz, và John Soars. New Headway English Course, Upper-Intermediate: Teacher's Book. Oxford: Oxford University Press, 1998.

MLA aipamena

Soars, Liz, và John Soars. New Headway English Course, Upper-Intermediate: Teacher's Book. Oxford: Oxford University Press, 1998.