Alexander, L. (1990). Developing Skills: An Integrated Course for Intermediate Students. London: Longman.
استشهاد بنمط شيكاغوAlexander, L.G. Developing Skills: An Integrated Course for Intermediate Students. London: Longman, 1990.
MLA استشهادAlexander, L.G. Developing Skills: An Integrated Course for Intermediate Students. London: Longman, 1990.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.