Soars, L., & Liz & John Soars. (1998). New Headway English Course: Upper-Intermediate Teacher's book. Oxford: Oxford University Press.
استشهاد بنمط شيكاغوSoars, Liz, و Liz & John Soars. New Headway English Course: Upper-Intermediate Teacher's Book. Oxford: Oxford University Press, 1998.
MLA استشهادSoars, Liz, و Liz & John Soars. New Headway English Course: Upper-Intermediate Teacher's Book. Oxford: Oxford University Press, 1998.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.