Cotton, D. (2004). Market leader: Elementary business English: Course book CD with test file. England: Pearson Education Ltd.
استشهاد بنمط شيكاغوCotton, David. Market Leader: Elementary Business English: Course Book CD With Test File. England: Pearson Education Ltd, 2004.
MLA استشهادCotton, David. Market Leader: Elementary Business English: Course Book CD With Test File. England: Pearson Education Ltd, 2004.
تحذير: قد لا تكون هذه الاستشهادات دائما دقيقة بنسبة 100%.