Soars, L., & Soars, J. (1998). New Headway English Course, Upper-Intermediate: Teacher's Book. Oxford: Oxford University Press.
استشهاد بنمط شيكاغوSoars, Liz, و John Soars. New Headway English Course, Upper-Intermediate: Teacher's Book. Oxford: Oxford University Press, 1998.
MLA استشهادSoars, Liz, و 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%.