Alexander, L. (1976). First things first student's book: An integrated course for beginners. London: Longman.
استشهاد بنمط شيكاغوAlexander, L.G. First Things First Student's Book: An Integrated Course for Beginners. London: Longman, 1976.
MLA استشهادAlexander, L.G. First Things First Student's Book: An Integrated Course for Beginners. London: Longman, 1976.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.