Alexander, L. G. (1977). Practice and progress: An integrated course for pre-intermediate students. London: Longman.
استشهاد بنمط شيكاغوAlexander, L. G. Practice and Progress: An Integrated Course for Pre-intermediate Students. London: Longman, 1977.
MLA استشهادAlexander, L. G. Practice and Progress: An Integrated Course for Pre-intermediate Students. London: Longman, 1977.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.