Langan, J. (2006). English Skills With Readings Sixth Edition. McGraw Hill Companies Inc.
استشهاد بنمط شيكاغوLangan, John. English Skills With Readings Sixth Edition. McGraw Hill Companies Inc, 2006.
MLA استشهادLangan, John. English Skills With Readings Sixth Edition. McGraw Hill Companies Inc, 2006.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.