Clementson, T. (2005). Natural English: Pre -intermediate resource book. Reading writing skills. Oxford: Oxford Univ. Press.
استشهاد بنمط شيكاغوClementson, Theresa. Natural English: Pre -intermediate Resource Book. Reading Writing Skills. Oxford: Oxford Univ. Press, 2005.
MLA استشهادClementson, Theresa. Natural English: Pre -intermediate Resource Book. Reading Writing Skills. Oxford: Oxford Univ. Press, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.