Doff, A. (2005). Language links: Grammar and vocabulary for self-study. Cambridge,New York: Cambridge University Press.
استشهاد بنمط شيكاغوDoff, Adrian. Language Links: Grammar and Vocabulary for Self-study. Cambridge,New York: Cambridge University Press, 2005.
MLA استشهادDoff, Adrian. Language Links: Grammar and Vocabulary for Self-study. Cambridge,New York: Cambridge University Press, 2005.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.