Soars, L., & Soars, J. (2005). New headway: Upper - Intermediate : Student's book (3rd ed.). Oxford: Oxford Univ. Press.
استشهاد بنمط شيكاغوSoars, Liz, و John Soars. New Headway: Upper - Intermediate : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2005.
MLA استشهادSoars, Liz, و John Soars. New Headway: Upper - Intermediate : Student's Book. 3rd ed. Oxford: Oxford Univ. Press, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.