Langan, J. (2008). English skills with readings (7th ed., annotated instructor's ed.). New York: McGraw-Hill.
استشهاد بنمط شيكاغوLangan, John. English Skills With Readings. 7th ed., annotated instructor's ed. New York: McGraw-Hill, 2008.
MLA استشهادLangan, John. English Skills With Readings. 7th ed., annotated instructor's ed. New York: McGraw-Hill, 2008.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.