Cotton, D. (2008). Market Leader: Upper Intermediate Business English Course Book (New Ed., 5th Impr.). Pearson Education Ltd.
Chicago-Zitierstil (17. Ausg.)Cotton, David. Market Leader: Upper Intermediate Business English Course Book. New Ed., 5th Impr. Harlow: Pearson Education Ltd, 2008.
MLA-Zitierstil (9. Ausg.)Cotton, David. Market Leader: Upper Intermediate Business English Course Book. New Ed., 5th Impr. Pearson Education Ltd, 2008.
Achtung: Diese Zitate sind unter Umständen nicht zu 100% korrekt.